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

Solution: let 'r' be the radius of spherical ball. ◆Volume raised by shperical ball=6.75cm. ◆Vol. of spherical ball = vol. of water displaced in cylindrical tub. ◆4/3pie r^3= pie r^2h ◆r^3=3/4×12×12×6.75 ◆r^3=729 cm^3◆r=9 cm.

3Thank You

Yashi .... 6 years, 1 month ago

9 cm.

2Thank You

Aadya Singh ? 6 years, 1 month ago

Radius of ball is 9 cm.

3Thank You

ANSWER

Standard paper ki liye kise prepare ho

Posted by Hariom Yaduvanshi 6 years, 1 month ago

CBSE > Class 10 > Mathematics

2 answers

Sumit Sharma 6 years, 1 month ago

10 yeras sample paper book lele bro wo help karegi jaada usse practice karo jitna ho sake

0Thank You

Abhinav ? 6 years, 1 month ago

Practice kro jitni ho ske..sample papers solve kro..R.D.Sharma..R.S.Aggrawal lagao..

2Thank You

ANSWER

Ah...board board krke itna tension bna diya.....what a scenario around us ...is it true???

Posted by Shashwat Shukla 6 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Abhinav ? 6 years, 1 month ago

Tension toh h pr acche marks aaye toh life set h..

4Thank You

ANSWER

Mathematics is not so difficult as we are thinking just start revision from today u will get definitely success.....

Posted by Shashwat Shukla 6 years, 1 month ago

CBSE > Class 10 > Mathematics

4 answers

Jattin Bansal 6 years, 1 month ago

It's not so difficult when you think that maths is easy

0Thank You

Anuj Jha 6 years, 1 month ago

No, you have to do ultimate practise

0Thank You

Abhinav ? 6 years, 1 month ago

Maths is my fav. subject..its easy not too much hard

2Thank You

? ... 6 years, 1 month ago

Jisko aati uske liye easy hai but for me maths is very hard

1Thank You

ANSWER

a\(ax-1)+b\(bx-1)=(a+b)

Posted by Kanchan Halder 6 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Aman Pal 6 years, 1 month ago

Hellooooo plz give me solution

0Thank You

ANSWER

Two dice are thrown simultaneously at random . Find the probability of getting a sum of eight.

Posted by Anany Mittal 6 years, 1 month ago

CBSE > Class 10 > Mathematics

4 answers

Abhinav ? 6 years, 1 month ago

◆Total no of outcome = 6² = 36 ◆Let E be the event of getting a sum of 8 ◆Favorable outcome = { (2,6) , (3,5) , (4,4) , (5,3) , (6,2) } ◆No. of favorable outcome = 5 ◆Probability =No.of favourable outcomes/Total no. of outcomes. ◆P(E)= 5/36.

1Thank You

Anany Mittal 6 years, 1 month ago

Explain ?

0Thank You

Anany Mittal 6 years, 1 month ago

How ?

0Thank You

Aadya Singh ? 6 years, 1 month ago

5/36.

2Thank You

ANSWER

9 sec ² A-9tan²A

Posted by Aman Hasan 6 years, 1 month ago

CBSE > Class 10 > Mathematics

2 answers

Aman Pal 6 years, 1 month ago

9(sec^2A - tan^2A) Sec^2A - tan^2A =1 9 (1) 9

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Aadya Singh ? 6 years, 1 month ago

9sec^2 A - 9tan^2 A => 9(sec^2 - tan^2) => 9×1 => 9

1Thank You

ANSWER

The Tigonomentric formula who inverter

Posted by Ragul Ragul 6 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Kavyansh Rautela 6 years, 1 month ago

Hipparchus

1Thank You

ANSWER

Prove that tanA/1-cotA +cotA/1-tanA= 1+ tanA+ cotA

Posted by Kavitha Nagaraj 6 years, 1 month ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Pratical chapter

Posted by Ayush Pandey 6 years, 1 month ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

TheHCF of 65 and 117 is expressible in the form 65m-117 then value of m is..

Posted by Sanskriti Sharma 6 years, 1 month ago

CBSE > Class 10 > Mathematics

2 answers

Hariom Yaduvanshi 6 years, 1 month ago

0Thank You

Aadya Singh ? 6 years, 1 month ago

The value of m is 2.

2Thank You

ANSWER

P(x ,y)=?

Posted by Nandagopan Nandagopan.G 6 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Nandagopan Nandagopan.G 6 years, 1 month ago

root ofx2+y2

1Thank You

ANSWER

Rd sharma se questions aate hai kya?

Posted by Aarti Rana 6 years, 1 month ago

CBSE > Class 10 > Mathematics

6 answers

Rohit Friend Deepika 6 years, 1 month ago

Hii deepika

1Thank You

? ... 6 years, 1 month ago

I think in standard math 70% questions will come from ncert remaining 30% will come from additional books like rd sharma and rs Agarwal but it will be based on ncert.

1Thank You

Abhinav ? 6 years, 1 month ago

Ha ..aate h .. practice ke lie lagana padega ..ye ni keh skte ki poora ncert ayega..pr base vahi h...

1Thank You

Aarti Rana 6 years, 1 month ago

Are u sure ??

1Thank You

Aarti Rana 6 years, 1 month ago

Mainly isse se aate hai

1Thank You

Manisha Dhibar 6 years, 1 month ago

Obviously,but its based on ncert

1Thank You

ANSWER

Sample paper me jo questions rhta h kya waisa hi same questions aata h board me

Posted by Sanjana Kumari 6 years, 1 month ago

CBSE > Class 10 > Mathematics

5 answers

Sanjana Kumari 6 years, 1 month ago

Thanks to all

0Thank You

Sachin Gurjar 6 years, 1 month ago

NO ,but pattern is almost same as given in sample paper. so don't totally depends on that questions and don't try to fix them in mind without understanding . you should solve your problems first ok

1Thank You

⛩️Singh Emperor☀️☀️☀️ . 6 years, 1 month ago

Pattern same hota hai ji waitage of qiestion bhi same hota hai but question same nahi hota?

2Thank You

Prince Raj 6 years, 1 month ago

Haan.. maximum waisa hi hota hai so exam ko humesha cool mind de do..best of luck...??

3Thank You

Deepak Gupta 6 years, 1 month ago

3Thank You

ANSWER

Can anyone determine or suggest that mathematics sample standard paper level is same as board paper

Posted by Shashwat Shukla 6 years, 1 month ago

CBSE > Class 10 > Mathematics

4 answers

Shashwat Shukla 6 years, 1 month ago

Ok thanku.....may be aisa hi ho...paper level as sample paper

0Thank You

⛩️Singh Emperor☀️☀️☀️ . 6 years, 1 month ago

It is quite difficult bro ...but not too that we are not going to solve.....waise aap 1-2 sample paper bana lo doubt clear ho jayega.....

2Thank You

Yashi .... 6 years, 1 month ago

Yes..it will same as previous year board paper..

5Thank You

Aadya Singh ? 6 years, 1 month ago

Yes..It will same...

5Thank You

ANSWER

If H is the HCF of 4052 and 12576 and H =4052×A+12576×B then find the value of [H+A+B]

Posted by Shresth Bhardwaj ?? 6 years, 1 month ago

CBSE > Class 10 > Mathematics

4 answers

Aadya Singh ? 6 years, 1 month ago

Sahil....It's solution is too long....u can use google or you tube to understand it...?

1Thank You

Sahil ??? 6 years, 1 month ago

How, i want solution to understand

2Thank You

Shresth Bhardwaj ?? 6 years, 1 month ago

Thank s Buddie

1Thank You

Aadya Singh ? 6 years, 1 month ago

349

5Thank You

ANSWER

In triangle OPQ,right angled at P, OP=7 and OQ-PQ = 1cm.Determine the value of tanQ and secQ

Posted by Krishna Kumari 6 years, 1 month ago

CBSE > Class 10 > Mathematics

4 answers

Sahil ??? 6 years, 1 month ago

TanQ=7/24 and secQ=25/24

3Thank You

Arpita Prasad 6 years, 1 month ago

Since OQ- PQ=1 Let PQ be x,therefore OQ=1+x Apply Pythagoras n find OQ and PQ tanQ=7/24 secQ=25/24

2Thank You

Aadya Singh ? 6 years, 1 month ago

TanQ = 7/24 and secQ = 25/24

3Thank You

⛩️Singh Emperor☀️☀️☀️ . 6 years, 1 month ago

7/24 and 25/24

2Thank You

ANSWER

How to get zeros of polynomial t²-15

Posted by Rj Pratyush Remix 6 years, 1 month ago

CBSE > Class 10 > Mathematics

3 answers

Sahil ??? 6 years, 1 month ago

√15 and -√15

1Thank You

Md Amir 6 years, 1 month ago

t^2-15=(t-√15)(t+√15) So zeroes t-√15=0 t=√15 t+√15=0 t=-√15

2Thank You

⛩️Singh Emperor☀️☀️☀️ . 6 years, 1 month ago

+√15 and -√15

5Thank You

ANSWER

ABCD is a cyclic quadrilateral. AC and bd are join and angle BAC is 50 degree and angle DBC is 60 degree, then find angle BCD.

Posted by Vijay Verma 6 years, 1 month ago

CBSE > Class 10 > Mathematics

8 answers

Vijay Verma 6 years, 1 month ago

No it's answer is 70 °

0Thank You

Sahil ??? 6 years, 1 month ago

I think it os 9th class question

0Thank You

Sahil ??? 6 years, 1 month ago

angle BCD=60°

1Thank You

Prince Raj 6 years, 1 month ago

Angle BDC=Angle BAC=50 degree(angle at same segment) Hence,angle BCD+angle CBD+angle BDC=180degree AngleBCD+60degree+50degree=180 degree AngleBCD=(180-110)degree AngleBCD=70degree

1Thank You

⛩️Singh Emperor☀️☀️☀️ . 6 years, 1 month ago

U r most welcome bro?

2Thank You

Vijay Verma 6 years, 1 month ago

Thanku

2Thank You

⛩️Singh Emperor☀️☀️☀️ . 6 years, 1 month ago

Use relation of angle between same segment

2Thank You

⛩️Singh Emperor☀️☀️☀️ . 6 years, 1 month ago

70 degree

2Thank You

ANSWER

Prove that cos/(1-tan) + sin/(1-cot) = sin + cos

Posted by Innovative Bureau 6 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Chandrakant Mane 6 years, 1 month ago

Next Gurukul Learner's Section WikiK-12 Wiki AssessmentAssessments ForumQ&A Forum Educator's Section MOOCMOOCs Join Experts PanelJoin Experts Panel Next WorldThe Next World Academic Questions & Answers Forum Vijay Sep 7, 2014 Prove that cos A / (1 - tan A) + sin A /(1 - cot A) = sin A + cos A Prove that cos A / (1 - tan A) + sin A /(1 - cot A) = sin A + cos A question_answer Answers(1) person Chandrakant Mane Member since Apr 1, 2014 Sol: cos A / (1 - tan A) + sin A /(1 - cot A) = sin A + cos A LHS = cos A / (1 - tan A) + sin A /(1 - cot A) = cos2 A / (cos A - sin A) + sin2 A / (sin A - cos A) = cos2 A / (cos A - sin A) - sin2 A / (cos A - sin A) = (cos2 A - sin2 A) / (cos A - sin A) = (cos A + sin A) (cos A - sin A) / (cos A - sin A) . = (cos A + sin A). Hence proved.

1Thank You

ANSWER

A wooden article was made by scooping out a hemisphere from each end of a solid cylinder,as shown in the given figure.if the height of the cylinder is 10cm and its base is of radius 3.5cm.find the total surface area of the article.

Posted by Riya Shree Gupta 6 years, 1 month ago

CBSE > Class 10 > Mathematics

24 answers

Yashi .... 6 years, 1 month ago

Ok..aadya..?

3Thank You

Yashi .... 6 years, 1 month ago

Aap aye ni the isliye..ab happy h hum..☺️

2Thank You

Aadya Singh ? 6 years, 1 month ago

Ek ekta ka h...vahi pe baat karte h

3Thank You

⛩️Singh Emperor☀️☀️☀️ . 6 years, 1 month ago

Hey plzz hamne sorry bola na....aap ?? kyu rahi ho

2Thank You

Yashi .... 6 years, 1 month ago

Ok..kaha pr..

3Thank You

Aadya Singh ? 6 years, 1 month ago

Uper aa jao...

2Thank You

Yashi .... 6 years, 1 month ago

Hum bhi acche h..☺️

3Thank You

Yashi .... 6 years, 1 month ago

Kaha the aap..??

2Thank You

Aadya Singh ? 6 years, 1 month ago

Aur aap..

2Thank You

Aadya Singh ? 6 years, 1 month ago

Mai achhi hu..

3Thank You

Yashi .... 6 years, 1 month ago

Aadyaa..kaisi ho aap..?

2Thank You

⛩️Singh Emperor☀️☀️☀️ . 6 years, 1 month ago

Sorry i too miss you a lot....

2Thank You

Aadya Singh ? 6 years, 1 month ago

I'm fine bro..

4Thank You

Aadya Singh ? 6 years, 1 month ago

Hello shreya

4Thank You

Yashi .... 6 years, 1 month ago

Im fine pk ji..I was waiting for u..??

3Thank You

⛩️Singh Emperor☀️☀️☀️ . 6 years, 1 month ago

Bro reply bhi kar do....sirf thanks hi karoge....?

3Thank You

⛩️Singh Emperor☀️☀️☀️ . 6 years, 1 month ago

Hey how r u...shreya g

3Thank You

Yashi .... 6 years, 1 month ago

Hello pk ji..and aadya..?

3Thank You

⛩️Singh Emperor☀️☀️☀️ . 6 years, 1 month ago

Sorry for being late

2Thank You

⛩️Singh Emperor☀️☀️☀️ . 6 years, 1 month ago

How r u

2Thank You

Aadya Singh ? 6 years, 1 month ago

Good evening bro...?

3Thank You

⛩️Singh Emperor☀️☀️☀️ . 6 years, 1 month ago

Good evening sis

4Thank You

⛩️Singh Emperor☀️☀️☀️ . 6 years, 1 month ago

374 cm square

4Thank You

Aadya Singh ? 6 years, 1 month ago

374 cm square.

4Thank You

ANSWER

there are four steps ABCD she is north of the ABCD are in a straight line angle CBD equal to 60 degree distance between b and d is 100 cm distance between c and d is same as c b angle c a d is equal to 30 find distance between a and d

Posted by Suhani Gupta 6 years, 1 month ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Hey so u all have opted standard mathematics....wow.....means all are math lovers ..amazing....sample paper is also easy by cbse

Posted by Shashwat Shukla 6 years, 1 month ago

CBSE > Class 10 > Mathematics

4 answers

Prinshi Jangir 6 years, 1 month ago

Haaa

0Thank You

Aadya Singh ? 6 years, 1 month ago

Yes...and I know the sample paper is easy.. ?

4Thank You

Suhana.. .. ? #Alone 6 years, 1 month ago

Standard li hh.....but maths lover bilkul nahi hu ... Aur 11th m bhi maths nahi lungi??..

1Thank You

Yashi .... 6 years, 1 month ago

Yes..

5Thank You

ANSWER

Quadratic formulas

Posted by Monu Yaduvanshiyon 6 years, 1 month ago

CBSE > Class 10 > Mathematics

2 answers

Vighnesh Suryavanshi 6 years, 1 month ago

x = -b +_ √b^2 + 4ac /2a

0Thank You

Ram ? 6 years, 1 month ago

X equals minus b plus or minus root of b square minus 4ac whole divided by 2a

0Thank You

ANSWER

If secA = x+1/4x...then prove secA + tanA = 2x or 1/2x

Posted by Arukshita Dubey 6 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Arukshita Dubey 6 years, 1 month ago

Given: secA = x+1/4x secA ^2 =(x+1/4x) ^2 (Squaring both the sides) tanA^2 + 1 = x^2 + 1/16x^2 + 1/2 tanA^2 = x^2 + 1/16x^2 + 1/2 - 1 tanA^2 = x^2 + 1/16x^2 - 1/2 tanA ^2 = (x - 1/4x) ^2 tanA = x - 1/4x AS PER QUESTION : secA +tanA = x +1/4x + x - 1 /4x secA +tanA = x + x = 2x.... HENCE PROVED

1Thank You

ANSWER

Page 488 of 1971

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