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

It is known by observing the pattern of power of number for example- 5^2= 25 when we reduce 1 power then, 5^1 = 25/5= 5 and so same for 1 more less power 5^0= 5/5 =1

0Thank You

ANSWER

if BAF is an Isosceles triangle than the distance between points B and F is

Posted by Jasmine Aulakh 4 years, 7 months ago

CBSE > Class 10 > Mathematics

2 answers

Shubh Madheshiya 4 years, 2 months ago

Send picture of triangle

7Thank You

Krishna Gupta Gupta 4 years, 2 months ago

Equal

2Thank You

ANSWER

What is a mean of first 12 prime numbers

Posted by Mohit Gaur 4 years, 7 months ago

CBSE > Class 10 > Mathematics

3 answers

Jattin Meghani 4 years, 6 months ago

(2,5,7,11,13,17,19,23,29,31,37,41)= 235/12

0Thank You

Kirandeepkaur Kaur 4 years, 7 months ago

2 ,3,5,7,11,13,17,19,23,29,31primenumber first 12

0Thank You

Krishna Gupta Gupta 4 years, 7 months ago

FIRST 12 prime numbers are 2,3,5,7,11,13,17,19,23,29,31. Mean=sum of all terms divided by total number of terms. =2+3+5+7+11+13+19+23+29+31/12. = 160/12.

0Thank You

ANSWER

2x+1=n

Posted by Prabhat Dwivedi 4 years, 7 months ago

CBSE > Class 10 > Mathematics

4 answers

Manshi Kharkwal 4 years, 7 months ago

X= n-1/2

0Thank You

Krishna Gupta Gupta 4 years, 7 months ago

X=n-1/2

0Thank You

Krishna Gupta Gupta 4 years, 7 months ago

X=n-1

1Thank You

Keesha Brahmawar 4 years, 7 months ago

What do we have to take out?

0Thank You

ANSWER

Find the LCM of numbers whose prime factorization are expressible as 3 * 5 square and 3 square * 7 square

Posted by Anshuman Singh 4 years, 7 months ago

CBSE > Class 10 > Mathematics

1 answers

Sounak Chatterjee 4 years, 7 months ago

The answer will be 3675

0Thank You

ANSWER

How to solve difficult trigonometric problems

Posted by Kavya Kavya 4 years, 7 months ago

CBSE > Class 10 > Mathematics

2 answers

Krishna Gupta Gupta 4 years, 7 months ago

By remembering all the trigonometry table

0Thank You

Rakesh Kumar 4 years, 7 months ago

Vgc

0Thank You

ANSWER

If one of the zeroes of the polynomial 2x^2 -4x - 2k is reciprocal of the other, find k

Posted by Nesrin K 4 years, 7 months ago

CBSE > Class 10 > Mathematics

5 answers

Krishna Gupta Gupta 4 years, 7 months ago

Alpha×1/alpha=-2k/2

0Thank You

R Prajapat 4 years, 7 months ago

Zeroes are= ¢ and 1/¢ ¢×1/¢= c/a ¢×1/¢= -2k/2 1=-k K=-1 answer....

0Thank You

Sonakshi Upadhyay 4 years, 7 months ago

Combination reaction: In this reaction in which two or more reactants combine to form a single product.A+B=AB Example: Burning of coal C(3)+O2(g)=Co2(g) Formation of water:H2(g)+O2(g)=H2O(l)

2Thank You

Abhi Dixit 4 years, 7 months ago

2Thank You

Aadil Ansari 4 years, 7 months ago

what is combination reaction

4Thank You

ANSWER

If x=0 find the value of p

Posted by Aryan Raj 4 years, 7 months ago

CBSE > Class 10 > Mathematics

1 answers

Nishtha Yadav 4 years, 7 months ago

What p to kuch h bhi na

0Thank You

ANSWER

a(-1, -1), b(6, 1) ,c(8, 8), d(x, y) are the vertices of a rhombus taken in order

Posted by Cyber Piratez 4 years, 7 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

30 women were examined in a hospital by a doctor and the number of hearts beats per minute were recorded at summarised as follows find the mean heart beats per minute for these women choosing a suitable method number of heartbeat per minute 65-68 68-70 17747 47777 days 8883 83-86 number of women to 43874 2

Posted by Sahil. Baghel 4 years, 7 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Evaluate x+3/x+2- 3x-7/2x-3 =0

Posted by Pushpa Chauhan 4 years, 7 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Case study The Prime Minister’s Citizen Assistance and Relief in Emergency Situations Fund was created on 28 March 2020, following the COVID-19 pandemic in India. The fund will be used for combating, and containment and relief efforts against the coronavirus outbreak and similar pandemic like situations in the future.

Posted by Jatin Motwani 4 years, 7 months ago

CBSE > Class 10 > Mathematics

1 answers

Gw Raunak Sahu 4 years, 4 months ago

answer Kaha h ????

27Thank You

ANSWER

8.4 all question on 5 to right hand side prove

Posted by Utkarsh Pandey 4 years, 7 months ago

CBSE > Class 10 > Mathematics

1 answers

Utkarsh Pandey 4 years, 7 months ago

8.4 question 5 rhs prove give me

4Thank You

ANSWER

Without factorisation, find the nature of the roots of Quadratic equation

Posted by Nandini Chaudhari 4 years, 7 months ago

CBSE > Class 10 > Mathematics

4 answers

Jeeya Surana 4 years, 7 months ago

b^2-4ac

0Thank You

R Prajapat 4 years, 7 months ago

D²-4ac, can find nature of roots

0Thank You

Mary Stuart 4 years, 7 months ago

Use quadratic formula...

0Thank You

Ankit Barnwal 4 years, 7 months ago

1.If value of discriminant is equal to zero ,roots will be equal. 2.If value of discriminant is greater than zero roots will be real. 3.If value of discriminant is less than zero roots will be imaginary.

0Thank You

ANSWER

In the adjoining diagram MM=CN.Prove that triangle ABC is isoscele

Posted by Jai Kumar 4 years, 7 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Prove that 1/√2 is irrational.

Posted by Mayank Sharma 4 years, 7 months ago

CBSE > Class 10 > Mathematics

2 answers

Ranvijay Kumar 4 years, 7 months ago

Let us assume 21 is rational. So we can write this number as 21=ba ---- (1) Here, a and b are two co-prime numbers and b is not equal to zero. Simplify the equation (1) multiply by 2both sides, we get 1=ba2Now, divide by b, we get b=a2 or ab=2Here, a and b are integers so, ab is a rational number, so 2 should be a rational number. But 2 is a irrational number, so it is contradictory. Therefore, 21 is irrational number

0Thank You

Kashish Verma 4 years, 7 months ago

Let us assume 21 is rational. So we can write this number as 21=ba ---- (1) Here, a and b are two co-prime numbers and b is not equal to zero. Simplify the equation (1) multiply by 2both sides, we get 1=ba2 Now, divide by b, we get b=a2 or ab=2 Here, a and b are integers so, ab is a rational number, so 2 should be a rational number. But 2 is a irrational number, so it is contradictory. Therefore, 21 is irrational number

1Thank You

ANSWER

Ch 8 all formula in detail?

Posted by Naina Choudhary. 4 years, 7 months ago

CBSE > Class 10 > Mathematics

1 answers

Labdhi Sharma 4 years, 7 months ago

Sin theta =P/H Cos theta=B/H Tan theta=P/B Cosec theta= H/P Sec theta=H/B Cot theta= B/P Sin2 theta+ Cos2 theta =1 1+ tan2 theta=sec2 theta 1+ cot 2 theta= cosec 2 theta

3Thank You

ANSWER

If sin theta + cos theta = p and sec theta + cos theta= q then prove that q(qsquare-1)=2p

Posted by Mohan Bajpai 4 years, 7 months ago

CBSE > Class 10 > Mathematics

1 answers

Anuj Mishra 4 years, 7 months ago

Questions galat hai Cos thetha ki place par cosec thetha hoga

0Thank You

ANSWER

Alpha cube+beta cube+gamma cube=

Posted by Shruti Harit 4 years, 7 months ago

CBSE > Class 10 > Mathematics

2 answers

Priya Dharshini 4 years, 7 months ago

3×alpha×beta×gama. This is correct

0Thank You

Priya Dharshini 4 years, 7 months ago

(-b/a)³

1Thank You

ANSWER

6022 molecules of Neon gas are present in a tiny discharge tube. How many moles of Neon are present in the discharge tube?

Posted by Gregory Binu 4 years, 7 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Prove that the square of any integer is of the form 3m or 3m+1 but not of the form 3m+2

Posted by Aaradhya Yadav 4 years, 7 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Finf the probability of getting a head when a coin is tossed once. Also find the probability of getting a tail

Posted by Devendra Jetti 4 years, 7 months ago

CBSE > Class 10 > Mathematics

2 answers

Mukunda Madhab Dutta 4 years, 7 months ago

1/2

1Thank You

Harjot Kaur 4 years, 7 months ago

Probability of getting a head = 1/2 Probability of getting a tail = 1/2

1Thank You

ANSWER

Find the area of a sector of a circle whose radius is r and length of the arc is l.

Posted by Shradha Kumari 4 years, 7 months ago

CBSE > Class 10 > Mathematics

4 answers

Anuj Mishra 4 years, 7 months ago

From formula , Area of sector = 1/2×l.r

1Thank You

Pushpa Chauhan 4 years, 7 months ago

area of sector = ?,radius= r, length=l. Arc length= theta/360 *2πr l=theta/180*πr area of sector=theta/360*2πr^ we write as area of sector= theta/2*180*πr*r = (theta /180*πr)*r/2 =l*r/2 ans

1Thank You

Shradha Kumari 4 years, 7 months ago

Iske bdd hi nhi ho raha h Pura find kijiye

2Thank You

Good Day 4 years, 7 months ago

Area of sector = πr^2theta/360°

1Thank You

ANSWER

60. ABCD is a square P and Q are points on AB and BC respectively such that the area of triangle APD + 5, area of triangle PBQ = 4 and area of triangle QCD=6, all areas in square units. Then the square of the area of the triangle DPQ, is :

Posted by Gregory Binu 4 years, 7 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Tan A = 3/4, find the value of 1/sinA + 1/cos A

Posted by Mohd Amzad 4 years, 7 months ago

CBSE > Class 10 > Mathematics

5 answers

Mayank Tiwari 4 years, 7 months ago

0Thank You

Good Day 4 years, 7 months ago

Tan = P/B Where P = 3 and B = 4 For hypotenuse By Pythagoras theorem H×H = P×P + B×B = 3×3 + 4×4 = 9 + 16 = 25 H = 5 1/SinA = CosecA 1/CosA = SecA CosecA = H/P and SecA = H/B CosecA + SecA = 5/3 + 5/4 = 20 +15/12 = 35/12

1Thank You

Ankit Barnwal 4 years, 7 months ago

25/12

0Thank You

Mohd Amzad 4 years, 7 months ago

Can you explain the answer

0Thank You

Naveen Babu 4 years, 7 months ago

1/3/5+1/4/5

0Thank You

ANSWER

Evaluate:- [¡] Sec41° Sin49°+Cos49° Cosec41°2/root 3(tan20° tan60° tan70°)

Posted by Gurpreet Kaur 4 years, 7 months ago

CBSE > Class 10 > Mathematics

2 answers

Anuj Mishra 4 years, 7 months ago

2+root3 /root 3

0Thank You

Shradha Kumari 4 years, 7 months ago

sec 41°sin(90-41°)+cos 49°cosec (90°-49°)×2/root 3 (tan(90°-70)tan60 tan70 sec41°cos41°+cos49°sec49°×2/root 3 (cot70×tan70×tan60) 1+1×2/root 3 (1×root3) 2×2=4....ans...

0Thank You

ANSWER

3x+4y=10 and 2x-2y=2

Posted by Sushmitha Sushmi 4 years, 7 months ago

CBSE > Class 10 > Mathematics

2 answers

Good Day 4 years, 7 months ago

3x + 4y = 10 2x - 2y = 2 OR x - y = 1 Multiply by 3 in equation 2 x - y = 1 × 3 3x - 3y = 3 Using Elimination method 3x + 4y = 10 3x - 3y = 3 7y = 7 y = 1 Putting the value of y in equation 1 3x + 4y = 10 3x + 4 = 10 3x = 10 - 4 3x = 6 x = 2

1Thank You

Sushmitha Sushmi 4 years, 7 months ago

X=9/13,y=-5/13

3Thank You

ANSWER

9sec square A-9tan square A =

Posted by Kuruma Nagasuri 4 years, 7 months ago

CBSE > Class 10 > Mathematics