CBSE > Class 10 > Mathematics | CBSE Board | Homework Help

Rational Number is defined as the number which can be written in a ratio of two integers. An irrational number is a number which cannot be expressed in a ratio of two integers. In rational numbers, both numerator and denominator are whole numbers, where the denominator is not equal to zero. While an irrational number cannot be written in a fraction. The rational number includes numbers that are perfect squares like 9, 16, 25 and so on. On the other hand, an irrational number includes surds like 2, 3, 5, etc. The rational number includes only those decimals, which are finite and repeating. Conversely, irrational numbers include those numbers whose decimal expansion is infinite, non-repetitive and shows no pattern.

3Thank You

Virat ?? 6 years, 5 months ago

An irrational number is a number that cannot be expressed as a fraction for any integers and . Irrational numbers have decimal expansions that neither terminate nor become periodic. ... Numbers of the form are irrational unless is the th power of an integer.

2Thank You

Virat ?? 6 years, 5 months ago

Rational no.. Are the no which can written in the form of p/ q where p and q are the intergers and q is not equal to 0

2Thank You

ANSWER

Math halfyearly paper

Posted by Mohit Baheti 6 years, 5 months ago

CBSE > Class 10 > Mathematics

2 answers

Ankit Kumar 6 years, 5 months ago

Bhai morning shift ya evening shift btaoo mjhe

1Thank You

~ Honey... ? 6 years, 5 months ago

Which school

1Thank You

ANSWER

Guys ,"If you any problem in Mathematics You ask me" I like it to u Ask maths problem☺

Posted by Ankit Kumar 6 years, 5 months ago

CBSE > Class 10 > Mathematics

24 answers

Sahil ??? 6 years, 5 months ago

Ok guys sorry for wasting time

0Thank You

Ankit Kumar 6 years, 5 months ago

Sahil bhai question glt h question nikala kaha se h wrong question bhai

0Thank You

Aadya Singh ? 6 years, 5 months ago

Dono ka answer same aana chahiye and vo aa ni rha

1Thank You

Aadya Singh ? 6 years, 5 months ago

But sahil answer to aa jayega but value put karne pe satisfy ni hoga....

1Thank You

Sahil ??? 6 years, 5 months ago

Aadya google par main bhi dekh chuka hoon but you have to solve it with 11

2Thank You

Ankit Kumar 6 years, 5 months ago

Suhana my pleasure .ur problem my problem

1Thank You

Ankit Kumar 6 years, 5 months ago

Sahil broo me ghar ja kr aapka pura sawal explanation ke sath bhejunga

1Thank You

Aadya Singh ? 6 years, 5 months ago

Sahil I think your question is wrong, there should be 7 in place of 11 in one equation...

3Thank You

Ankit Kumar 6 years, 5 months ago

Sorry honey mjhe pta nhi boy ya girl so sorry.

1Thank You

? Queen ? 6 years, 5 months ago

Thanks...

0Thank You

~ Honey... ? 6 years, 5 months ago

Oye Mr.. I m. Girl

0Thank You

Ankit Kumar 6 years, 5 months ago

Whats ur name suhana haan maine kaha agar aapko kch question me difficulty hoon toh aap mjhe meri insta pr sawal bhej skte hoon.and waise aap achi chodna maat

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Sahil ??? 6 years, 5 months ago

Lekin ankit bhai answer jaroor batana

1Thank You

Ankit Kumar 6 years, 5 months ago

Bhaiyo or aap sabki sister jisko bhi question puchna hoon mjhe ek message kr dena.Ankit kumar.if you have a hard question u click photo and send me on my insta Kumar_ankit120 pr puch skte

1Thank You

Ankit Kumar 6 years, 5 months ago

Sahil yeh question thik h lekin aap iski root jo value h na ise aap substitution method se kr lo . me abhi bahar aaya toh value aise bta nhi skta

1Thank You

? Queen ? 6 years, 5 months ago

Nahi. Kuch nahi

1Thank You

Sahil ??? 6 years, 5 months ago

√x+y=11,x+√y=11. Give me the value of x and y

3Thank You

~ Honey... ? 6 years, 5 months ago

Hey dear suhu.. Kya hua yrr aapko.. Bestie k saath share nhi krogi

1Thank You

? Queen ? 6 years, 5 months ago

Nahi iss app pr mene help lena chor diya hh...aur shayad kl se au bhi naa..??

1Thank You

~ Honey... ? 6 years, 5 months ago

Hlo

0Thank You

Ankit Kumar 6 years, 5 months ago

You have a problem in any u ask me

1Thank You

~ Honey... ? 6 years, 5 months ago

Will u help me plz dear

0Thank You

Ankit Kumar 6 years, 5 months ago

Hii

1Thank You

? Queen ? 6 years, 5 months ago

2Thank You

ANSWER

Friends, can anyone tell me when we will we be able to choose basic or standard maths.?

Posted by Parthiv Patel 6 years, 5 months ago

CBSE > Class 10 > Mathematics

3 answers

Virendra Kumar 6 years, 5 months ago

Standard

0Thank You

Norsang Gyabo 6 years, 5 months ago

I think standard Maths will give more scope or field.

0Thank You

~ Honey... ? 6 years, 5 months ago

Standard

1Thank You

ANSWER

Hcf and 168 and 126 is

Posted by Shivani Bhati 6 years, 5 months ago

CBSE > Class 10 > Mathematics

4 answers

Aviral Goyal 6 years, 5 months ago

0Thank You

Virat ?? 6 years, 5 months ago

0Thank You

Bees King???? 6 years, 5 months ago

2Thank You

Shreeya Asthana 6 years, 5 months ago

0Thank You

ANSWER

8 ch all formulas

Posted by ?Aaliya? ☺️Yaduvanshi? 6 years, 5 months ago

CBSE > Class 10 > Mathematics

5 answers

Ankit Kumar 6 years, 5 months ago

Book me h toh usme dekh lo kyuki itna likhenge ise badiya h ki aap ncert ki book me dekh lo

0Thank You

Shreeya Asthana 6 years, 5 months ago

Hcf is 42

1Thank You

Shivani Bhati 6 years, 5 months ago

Hcf and 168 and 126 is

0Thank You

Ad Singh 6 years, 5 months ago

Sin²A +Cos²A=1

1Thank You

Ad Singh 6 years, 5 months ago

You are joking too much formula s

0Thank You

ANSWER

How many two digits number are divisible by 3?

Posted by Davinder Singh 6 years, 5 months ago

CBSE > Class 10 > Mathematics

7 answers

Vineet Seervi 6 years, 5 months ago

30 number

0Thank You

Virendra Kumar 6 years, 5 months ago

0Thank You

Aviral Goyal 6 years, 5 months ago

0Thank You

Muskan Sahu 6 years, 5 months ago

0Thank You

Chandan Kumar 6 years, 5 months ago

30 digits

0Thank You

Virat ?? 6 years, 5 months ago

Or 30 digits

2Thank You

Virat ?? 6 years, 5 months ago

30 terms

2Thank You

ANSWER

For Standard Maths, Is RD Sharma & our NCERT book enough?

Posted by Miss.1234 6 years, 5 months ago

CBSE > Class 10 > Mathematics

18 answers

Miss.1234 6 years, 4 months ago

It's Enough

0Thank You

Vineet Seervi 6 years, 5 months ago

Enogh

1Thank You

Raunak Chauhan 6 years, 5 months ago

NCRET have we can obtained good marks by solving its all questions but RD sharma and other are aslo useful for that may might help us in fast processing and makes our ready to think hard.Due to solving additional our confidence level ups.But only maths doesnot make peecentage so take and study all subjects equall and make a daily routine for study subjects .All have equal value in board exam

1Thank You

Ankit Kumar 6 years, 5 months ago

If you study in goverment you revise ur ncert book and support material these two books helps u to good markss in board examination .if ur r not a student of govt. School.so use RD sharma

1Thank You

Kartiek Singh 6 years, 5 months ago

I think NCERT book , Rs aggarwal , last year paper and important questions from website and I also refer to use All in one books

1Thank You

Shreeya Asthana 6 years, 5 months ago

0Thank You

Miss.1234 6 years, 5 months ago

☺

0Thank You

Shreeya Asthana 6 years, 5 months ago

My pleasure

1Thank You

Shreeya Asthana 6 years, 5 months ago

2Thank You

Miss.1234 6 years, 5 months ago

Thanks for answering my question

1Thank You

Miss.1234 6 years, 5 months ago

Please don't try to chat here! Otherwise because of you i will also get block!?

1Thank You

Shreeya Asthana 6 years, 5 months ago

Hlo

1Thank You

? Queen ? 6 years, 5 months ago

0Thank You

Shreeya Asthana 6 years, 5 months ago

I have also taken standard level, i used to do ncert book first and then ncert exampler. Because of standard level, u should prefer ncert then ncert exampler and after then only any other side book

2Thank You

? Queen ? 6 years, 5 months ago

Yes..

1Thank You

Miss.1234 6 years, 5 months ago

Ok thanks.....you mean i should do only NCERT book , no need to do RD?

1Thank You

Isha Negi 6 years, 5 months ago

Yes, only ncert book you should do because cbse paper is come from ncert mostly if u do this only your all concept will clear. And if your all concept are clear u can do any book eaisly.. Have a good day and prefer ncert first

2Thank You

Avni Arora 6 years, 5 months ago

Yes

2Thank You

ANSWER

Value of tan 60

Posted by Madhu Devi 6 years, 5 months ago

CBSE > Class 10 > Mathematics

8 answers

Vineet Seervi 6 years, 5 months ago

To find the value of tan 60 degrees geometrically, consider an equilateral triangle ABC since each of an angle in an equilateral triangle is 600. Therefore, ∠A = ∠B = ∠C = 60° Draw a perpendicular line AD from A to BC. Now consider the triangle, ABD and ADC, We have, ∠ ADB = ∠ADC= 90° and ∠ ABD = ∠ACD= 60° Therefore, AD=AD According to AAS Congruency, Δ ABD ≅ Δ ACD From this, we can say BD = DC Let us take, AB = BC =2a Then, BD= ½ (BC) =½ (2a) =a By using Pythagoras theorem, AB2 = AD2– BD2 AD2= AB2-BD2 AD2 =(2a)2 – a2 AD2 = 4a2-a2 AD2 = 3a2 Therefore, AD=a√3 Now in triangle ADB, Tan 600= AD/BD = a√3/a = √3 Therefore, tan 60 degrees exact value is given by, Tan 600=√3

0Thank You

Virendra Kumar 6 years, 5 months ago

√3

0Thank You

Ankit Kumar 6 years, 5 months ago

Root 3

0Thank You

Chandan Kumar 6 years, 5 months ago

√3

0Thank You

Virat ?? 6 years, 5 months ago

√3

0Thank You

Yashasvi Jain 6 years, 5 months ago

1.732=tan60

0Thank You

Isha Negi 6 years, 5 months ago

√3 is the value of tan60

0Thank You

Miss.1234 6 years, 5 months ago

√3

1Thank You

ANSWER

The perimeter of a quadrant of a circle is 25 cm. Find its area

Posted by Shreeya Asthana 6 years, 5 months ago

CBSE > Class 10 > Mathematics

4 answers

Sahil ??? 6 years, 5 months ago

Area=8800/7 cm^2

0Thank You

Shreeya Asthana 6 years, 5 months ago

Thanks User1234

0Thank You

Miss.1234 6 years, 5 months ago

This question is same as in our NCERT book ch-12...but in book perimeter of quadrant is given 22cm.....so if u know that book ques then, u can easily solve this also...

0Thank You

Shreeya Asthana 6 years, 5 months ago

Can anybody please answer me

0Thank You

ANSWER

If the sum of 1st 7 terms of an AP is 49 and that of first 17 terms is 289,find the sum of its first n terms.

Posted by Shashi Dhussa 6 years, 5 months ago

CBSE > Class 10 > Mathematics

2 answers

Yashasvi Jain 6 years, 5 months ago

S7= 7/2(2a+6d)=49. =a+3d=7 S17=17/2(2a+16d)=289 =a+8d=17 d=2., a=1 Sn=n

0Thank You

Aadya Singh ? 6 years, 5 months ago

n^2

1Thank You

ANSWER

Pair of integers whose sum is 6 and diffrence is -6

Posted by Aditya Kanigh Singh 6 years, 5 months ago

CBSE > Class 10 > Mathematics

1 answers

Shriram Naik 6 years, 5 months ago

0and 6

0Thank You

ANSWER

Daily wages of 110 workers, obtained in a survey, are tabulated below: Compute the mean daily wages and modal daily wages of these workers.

Posted by Gaurav Joshi 6 years, 5 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

How to do the metod of completing squad

Posted by Prakash Shaw 6 years, 5 months ago

CBSE > Class 10 > Mathematics

1 answers

Pinky Verma 6 years, 5 months ago

Write one rational and one irrational number lying between 0.25 and 0.32

0Thank You

ANSWER

If the nth of a progression be a linear expression in n then prove that this progression is an AP.

Posted by Shubham Gupta 6 years, 5 months ago

CBSE > Class 10 > Mathematics

1 answers

Gurwindar Singh 6 years, 5 months ago

given in rs agarwal

0Thank You

ANSWER

Find the root of the equation 1: 1/× - 1/× - 2 = 3

Posted by Khagendra Shrivas 6 years, 5 months ago

CBSE > Class 10 > Mathematics

1 answers

Aadya Singh ? 6 years, 5 months ago

(3+√3)/3 and (3-√3)/3

1Thank You

ANSWER

Check the quadratic equations 1: (x+1)(×+2)=(×+3)(×+4)

Posted by Khagendra Shrivas 6 years, 5 months ago

CBSE > Class 10 > Mathematics

1 answers

Aadya Singh ? 6 years, 5 months ago

No, it isn't quadratic equation.

1Thank You

ANSWER

The sum of first three terms of an AP is 33.If the product of first and third term exceeds the second term by 29, find the AP

Posted by Shreeya Asthana 6 years, 5 months ago

CBSE > Class 10 > Mathematics

2 answers

Shreeya Asthana 6 years, 5 months ago

Thanks ravi

0Thank You

Shree Ravi 6 years, 5 months ago

Let AP be (a-d), a, (a+d) a-d+a+a+d =3a Therefore 3a=33 a=11 (a-d) (a+d) =a+29 a2 (Square) - d2(Square) =11+29=40 121-d2(Square) =40 d2 (Square) =81 d=+/- 9 AP : 2,11,20 or 20,11,2

2Thank You

ANSWER

CBSE class 10 sample paper on Maths 2019_20 standard question no 23

Posted by Suresh Kalita 6 years, 5 months ago

CBSE > Class 10 > Mathematics

1 answers

Suresh Kalita 6 years, 5 months ago

CBSE Standard class 10 sample paper on Maths 2019_20 question no 23

4Thank You

ANSWER

Sin60 ka maan kitn ho ta ha

Posted by Anand Pandey 6 years, 5 months ago

CBSE > Class 10 > Mathematics

6 answers

Silent Girl Happy 6 years, 5 months ago

Root 3/2

1Thank You

Aadya Singh ? 6 years, 5 months ago

√3/2

4Thank You

Virat ?? 6 years, 5 months ago

Ye hota hh

0Thank You

Virat ?? 6 years, 5 months ago

Nhi.... √ 3/ 2

2Thank You

Madhu Sharma 6 years, 5 months ago

Root 3/2

0Thank You

Anand Pandey 6 years, 5 months ago

1/√3

1Thank You

ANSWER

Write the value of

Posted by Harman Singh Je 6 years, 5 months ago

CBSE > Class 10 > Mathematics

4 answers

? Queen ? 6 years, 5 months ago

?????

1Thank You

Aman Bhatt 6 years, 5 months ago

Value of what yrrr

1Thank You

Virat ?? 6 years, 5 months ago

Of....??

0Thank You

Abhinav ? 6 years, 5 months ago

Value of what?

2Thank You

ANSWER

how we get solution of sample paper of 2020

Posted by Jitendra Dhaka 6 years, 5 months ago

CBSE > Class 10 > Mathematics

3 answers

Sakshi Jain 6 years, 5 months ago

There is a option of marking scheme or answer sheet of sample paper ob the google

0Thank You

Payal.. ?? 6 years, 5 months ago

Danyang–Kunshan Grand Bridge

0Thank You

Jai Dagli 6 years, 5 months ago

Largest bridge in the world

0Thank You

ANSWER

any one plz help me

Posted by Rohan Raj 6 years, 5 months ago

CBSE > Class 10 > Mathematics

18 answers

Rohan Raj 6 years, 5 months ago

hii

1Thank You

? Queen ? 6 years, 5 months ago

Hii..

1Thank You

Aadya Singh ? 6 years, 5 months ago

My pleasure....?

2Thank You

Aadya Singh ? 6 years, 5 months ago

Perimeter of minor sector = 2r + (2πr× thita)/360

1Thank You

Rohan Raj 6 years, 5 months ago

Thank u soooo much....

2Thank You

Aadya Singh ? 6 years, 5 months ago

Area of major segment = πr^2 - ( area of minor segment)

1Thank You

Aadya Singh ? 6 years, 5 months ago

Area of minor segment =( πr^2 × thita)/360 - 1/2× r^2 × sin thita

2Thank You

Rohan Raj 6 years, 5 months ago

its ok .... i can understand it???

1Thank You

Aadya Singh ? 6 years, 5 months ago

Sorry...sorry...it's not arc...it's area of minor and major sector

1Thank You

Aadya Singh ? 6 years, 5 months ago

Sorry, area of minor arc = (πr^2 × thita)/360 and area of major arc = πr^2 ( 1- thita/360)

2Thank You

Aadya Singh ? 6 years, 5 months ago

Area of major arc = (πr^2 × thita )/ 360

2Thank You

Aadya Singh ? 6 years, 5 months ago

Length of major arc = 2πr - (2πr × thita)/360°

2Thank You

Aadya Singh ? 6 years, 5 months ago

Length of minor arc =( 2πr× thita)/360°

2Thank You

Rohan Raj 6 years, 5 months ago

Thank u too much ..

1Thank You

Aadya Singh ? 6 years, 5 months ago

Area of ring = π(R^2 - r^2 )

2Thank You

Aadya Singh ? 6 years, 5 months ago

Area of circle = πr^2 , Circumference of circle = 2πr , Area of semi- circle = πr^2/2 , Circumference of semi- circle = πr + 2r.

2Thank You

Honey... ? 6 years, 5 months ago

Yes wait for while

1Thank You

Rohan Raj 6 years, 5 months ago

Area related to circles....all the formulas i want.. plz anyone....

1Thank You

ANSWER

If in a triangle angle ACB= angle CDA,AC=6 and AD=3 then find the lenth AB

Posted by Ishika Bunkar 6 years, 5 months ago

CBSE > Class 10 > Mathematics

1 answers

Apurva Vaidya 6 years, 5 months ago

The length of AB is 12 cm. Step-by-step explanation: Given data: ∠ACB = ∠CDA AC = 6 cm AD = 3 cm To find: Length of AB From the figure attached below, in ∆ ABC & ∆ ACD, we have ∠A = ∠A ….. [∵ common angle for both the triangle] ∠ACB = ∠CDA ….. [∵ given] ∴ By AA similarity, ∆ABC ~ ∆ACD Since the sides of two similar triangles are proportional to each other ∴ \frac{AB}{AC} = \frac{AC}{AD} = \frac{BC}{CD} Now taking, \frac{AB}{AC} = \frac{AC}{AD} ⇒ AC² = AB * AD ⇒ 6² = AB * 3 …… [given AC = 6 cm & AD = 3 cm] ⇒ 36 = AB * 3 ⇒ AB = 36/3 = 12 cm

1Thank You

ANSWER

Ooo Villain!!!....Maine kl wali tumhari sari chats pdhli hai....... Who the hell r u??....... Tumhari himmt bhi kaise hui RGR ko dhkka dene ki.........?.??!!.....????and RGR kyuu nhii ayega ab....???!.??......

Posted by Diya ❤ 5 years, 11 months ago

CBSE > Class 10 > Mathematics

17 answers

Diya ❤ 6 years, 5 months ago

Btw tumhe kisne btaya iss app ke baare mein??????? And how do u know that his name is RGR in this app????!!???

0Thank You

Diya ❤ 6 years, 5 months ago

U haven't the right to give anyone punishment .okk.??........mera name!!!....achha....mai kuchh nhii jnti iss baare mein..?.....................btw ek baat kahu yaha koi movie nhii chl rhi ki tum villain aur ye story.....aur mai tdpungi........yeh new generation hai yhaa mujhe tum jaise villain ko sidha krna achhe se aata hai mr.......tumne smjh kya rkha hai mujhe haa...........Aur ha mujhe pura vishwas hai RGR zrur ayega...........

0Thank You

? Queen ? 6 years, 5 months ago

Kon hh tu...villain...

1Thank You

R G R 6 years, 5 months ago

Ab trpo Usk lie ????

1Thank You

R G R 6 years, 5 months ago

Lo vo ab kuch din nhi ayega ??????

1Thank You

R G R 6 years, 5 months ago

RGR k ashiqiii..... Tum RGR ko bohot pyarr krti ho na?.?

1Thank You

R G R 6 years, 5 months ago

To vo tumhi ho jiska nam RGR k notebook k hr page me likha rhta hai.... Usk hat me bhi ??

2Thank You

R G R 6 years, 5 months ago

I am the villain in his life ??

1Thank You

Shanaya ? 6 years, 5 months ago

Relax diya itna gussa mat karo

2Thank You

Karan Kohli 6 years, 5 months ago

Villain?

1Thank You

Karan Kohli 6 years, 5 months ago

Kon hai villan

1Thank You

Karan Kohli 6 years, 5 months ago

Hii

1Thank You

Diya ❤ 6 years, 5 months ago

Sorry ankeshji for this all.........but.....jab tak mai RGR se baat nhii kr leti tb tk ye gussa control mein nhii rahega.............

3Thank You

Ankesh ..✍? 6 years, 5 months ago

Bs diya ji control

3Thank You

Diya ❤ 6 years, 5 months ago

Online ho toh reply do.......tumne Rohit ko dhkka kyu dia???!!!.....

4Thank You

Diya ❤ 6 years, 5 months ago

mere case mein toh mujhe pta nhii tha kon tha dhkka dene wala shks...... but tum yhaa khud hi btane chle aye ki tumne Rohit ko dhkka dia..?.......tumne toh stairs se dhkka dia hai usse?? mai vaha hoti toh sachhi ussi wkt tumhe mr villain school building se hi dhkka de deti.............#TIT FOR TAT

4Thank You

Diya ❤ 6 years, 5 months ago

meko bhi kisi ne dhkka de dia tha kuchh din pehle......sachhi itna gussa aarha thana uss smyy ........but mujhe pta nhii tha kisne dhkka dia isliye gussa control mein tha ...that's why vo bach gya...?.......and ab tum..??.........

4Thank You

ANSWER

Find distance between the points A(-6,_4) B(9,-12)

Posted by Rita Kumari 6 years, 5 months ago

CBSE > Class 10 > Mathematics

2 answers

Jay Kumar Sharma 6 years, 5 months ago

By distance fromula =√(x2-x1)²+(y2-y1)² =√(9+6)²+(-12+4)² =√225+64 =√289 =17

0Thank You

Sangeeta Nunaiya 6 years, 5 months ago

Exercise 3.5

0Thank You

ANSWER

Ch-7

Posted by Valvai Vaibhav 6 years, 5 months ago

CBSE > Class 10 > Mathematics

2 answers

Nandini Kumari Gupta 6 years, 5 months ago

What ch-7???????. Write question clearly

1Thank You

621311 ?? 6 years, 5 months ago

???

0Thank You

ANSWER

Find value of "K" (7,-2) (5,1) (3,K) chapter 7 exercise7.3Q2

Posted by Rahul Jangid 6 years, 5 months ago

CBSE > Class 10 > Mathematics

1 answers

Aadya Singh ? 6 years, 5 months ago

K = 4

1Thank You

ANSWER

Ex :- 6.2 , Q:-6...Solution plz... Any one !!!?

Posted by Honey... ? 6 years, 5 months ago

CBSE > Class 10 > Mathematics

2 answers

Honey... ? 6 years, 5 months ago

Thank u sis ?

1Thank You

Aadya Singh ? 6 years, 5 months ago

In traingle POQ, AB|| PQ (given) . So, OB/BQ = OA/AP ( By thale's theorem)..........(1) . In triangle POR, AC||PR (given) . So, OC/CR = OA/AP ( By Thales theorem) ........(2) . From (1) and (2) , we get, OB/BQ = OC/CR. So, BC|| QR ( By conserve Thales theorem).

2Thank You

ANSWER

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