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

Nothing more bro....it is like a previous year paper........you don't have to worry about this......clear all the concepts of ncert and solve each question of it.???

0Thank You

Ritika Jhala 6 years, 2 months ago

Please help me out guys

3Thank You

ANSWER

What is chapter wise weight age this year?

Posted by Yawar Shah 6 years, 2 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Is ncert is enough for basic maths

Posted by ????? ?????? 6 years, 2 months ago

CBSE > Class 10 > Mathematics

10 answers

Ashish Chaudhaary 6 years, 2 months ago

Yes

1Thank You

Pk . 6 years, 2 months ago

??wow diku.....

1Thank You

Diksha? 6 years, 2 months ago

Yes optional is impt for all?

2Thank You

Pk . 6 years, 2 months ago

Nahi bhai.....

2Thank You

♛ ❝Ѕυнαɴα❞ ♛ 6 years, 2 months ago

No ... Optional r not most important 4 basic maths students..

1Thank You

♛ ❝Ѕυнαɴα❞ ♛ 6 years, 2 months ago

Yes

1Thank You

????? ?????? 6 years, 2 months ago

Is is important to study optional exercices for basic maths ?

2Thank You

Pk . 6 years, 2 months ago

Yes

1Thank You

Shreya Sharma?? 6 years, 2 months ago

Yes....

2Thank You

Diksha? 6 years, 2 months ago

Mostly yess

2Thank You

ANSWER

Circleck

Posted by Ranisekar Sekar.B 6 years, 2 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Show that n3-n is divisible by 6

Posted by Parul Goyal 6 years, 2 months ago

CBSE > Class 10 > Mathematics

4 answers

Aadya Singh ? 6 years, 2 months ago

Since, it is divisible by both 2 and 3 . So, it must be divisible by 6..

1Thank You

Aadya Singh ? 6 years, 2 months ago

Also, (n-1) , n and (n+1) are 3 consecutive integers thus as proved n³-n must be divisible by 3..

1Thank You

Aadya Singh ? 6 years, 2 months ago

Now, out of three (n-1) , n and (n+1) , one must be divisible by 2..

1Thank You

Aadya Singh ? 6 years, 2 months ago

n³-n => n(n² - 1) => n (n-1)(n+1) ..

1Thank You

ANSWER

Can anybody tell me that which book of sample paper is best except ulike for standard maths

Posted by S Sahay 6 years, 2 months ago

CBSE > Class 10 > Mathematics

2 answers

????? ?????? 6 years, 2 months ago

I think educart and oswal

2Thank You

Ashish Yadav 6 years, 2 months ago

Educart

2Thank You

ANSWER

5 ,() ,() 9 1/2

Posted by Ram Kumar Jaat 6 years, 2 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Find the 2013 questions paper

Posted by Tushar Sood 6 years, 2 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Divide 16 into two parts such that twice the square of the larger part exceeds the square of the smaller part by 164

Posted by Sanskriti Jais 6 years, 2 months ago

CBSE > Class 10 > Mathematics

2 answers

Pratvi Patel 6 years, 2 months ago

11111111111

0Thank You

Piyush Kr.?? 6 years, 2 months ago

10 and 6

1Thank You

ANSWER

If equals to 30 degree verify that cos 2A equals to 1 minus 10 squared upon 1 + 10 square A

Posted by Sanskriti Jais 6 years, 2 months ago

CBSE > Class 10 > Mathematics

3 answers

Piyush Kr.?? 6 years, 2 months ago

In the question...

0Thank You

Piyush Kr.?? 6 years, 2 months ago

There should A=30° in place of equals to 30°........its a typing mistake????

1Thank You

Piyush Kr.?? 6 years, 2 months ago

Since A=30°, Cos2A=1-tan^2A/1+tan^2A L.H.S=cos2A=cos2*30°=cos60°=1/2 R.H.S=1-tan^A/1+tan^A={1-(1/√3)^2}/{1+(1/√3)^2}=(1-1/3)/(1+1/3)=(2/3)/(4/3)=1/2 Hence LHS=RHS

1Thank You

ANSWER

If tan a = 2 root 2 then the value of Cos A minus sin a upon Cos A + sin a is

Posted by Sanskriti Jais 6 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Piyush Kr.?? 6 years, 2 months ago

Let a triangle ABC in which right angled at B and angle A is equal to theta degree.... Now tan a is equal to 2 root 2 and so, tan a is equal to BC/AB=2√2 ==>BC=2√2AB. Now let AB=X.Then BC =2√2X. By usuing Pythagoras theorem we have AC squire = AB square + BC square..==>AC=3X. Now (cosA-sinA)/(cosA+sinA)=-1

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ANSWER

Is ncert enough for maths standard

Posted by Chunni Lal Kumawat 6 years, 2 months ago

CBSE > Class 10 > Mathematics

3 answers

Himanshu Gupta 6 years, 2 months ago

No, Practice from rd sharma

0Thank You

Diksha? 6 years, 2 months ago

Nooo

0Thank You

Aseem Mahajan 6 years, 2 months ago

Nope

1Thank You

ANSWER

To score good marks in maths ..solve the every ncert question❓ All the best friend? And reply

Posted by Noob Pandey 6 years, 2 months ago

CBSE > Class 10 > Mathematics

2 answers

Noob Pandey 6 years, 2 months ago

U are right

1Thank You

Diksha? 6 years, 2 months ago

Any Q of ncert should not be skipped....

2Thank You

ANSWER

In a right angled triangle ABC,right angled at C,if tan=A, then, verify that 2sinA cosA=1

Posted by Geetha Geetha 6 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Piyush Kr.?? 6 years, 2 months ago

I think there should be tan A is equal to 1 in place of tan is equal to A in the question....

1Thank You

ANSWER

Sin 30+ tan 45 - cosec 60/sec 30+cos60+cot 45

Posted by Ashok Kumar 6 years, 2 months ago

CBSE > Class 10 > Mathematics

5 answers

Arpit Srivastava 6 years, 2 months ago

0Thank You

Roshan Singh 6 years, 2 months ago

Ans=1

1Thank You

Chirag Sharma 6 years, 2 months ago

Sin30=1/2 tan45=1 cosec60=2/√3 Sec30=2/√3 cos60=1/2 Cot45=1 So answer is 2

1Thank You

Chayanika Dutta 6 years, 2 months ago

Ans is 1

3Thank You

Ritesh Sharma 6 years, 2 months ago

3Thank You

ANSWER

Evaluate (Cos square ( 45 + A) + cos square ( 45 - A)) ÷( tan ( 60 + A) - tan (30 - A) ) +(cot 30 + sin 90 ) *(tan60 - sec A)

Posted by Deepanshi Gupta 6 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Piyush Kr.?? 6 years, 2 months ago

I think there is typing mistake in this question... Please check this question once again!!!!

1Thank You

ANSWER

The sum of first n term of an arithmetic progression is 210 and sum of of its first N -1 term is 171 if the first term 3 then write the arithmetic progression

Posted by Manjith King 6 years, 2 months ago

CBSE > Class 10 > Mathematics

3 answers

Pk . 6 years, 2 months ago

N=10?

1Thank You

Pk . 6 years, 2 months ago

AP=3 7 11 15.......

1Thank You

Pk . 6 years, 2 months ago

D=4

1Thank You

ANSWER

Which term of a. P. 3,7,.......is 79?

Posted by Gaurav Kamraj 6 years, 2 months ago

CBSE > Class 10 > Mathematics

9 answers

Arpit Srivastava 6 years, 2 months ago

20th term

0Thank You

Chirag Sharma 6 years, 2 months ago

79=3+(n-1)4 n=20

0Thank You

Krish Keshri 6 years, 2 months ago

79 is 20th term of AP

0Thank You

Alka Sharma 6 years, 2 months ago

79 is 18th term of an ap

0Thank You

Sonu Rawat 6 years, 2 months ago

79 is 20th term of this A.P

0Thank You

Suraj Kumar 6 years, 2 months ago

1Thank You

Mrigank Rasotra 6 years, 2 months ago

There must be three terms to make an A.P. but if it is a real A.P then the 20th term will be 79.

0Thank You

Abdulwahid Wahid 6 years, 2 months ago

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S Sahay 6 years, 2 months ago

1Thank You

ANSWER

If sinΦ+cosΦ=√3 then prove that tanΦ+cotΦ=1

Posted by Kingdon Pandey 6 years, 2 months ago

CBSE > Class 10 > Mathematics

2 answers

Pk . 6 years, 2 months ago

Hello

0Thank You

Sonu Rawat 6 years, 2 months ago

sinΦ+cosΦ=√3 squaring on both side (sinΦ +cosΦ)sq.=(√3)sq. sin sq Φ+cos sq Φ +2 sinΦ.cosΦ= 3 1+ 2sinΦ.cosΦ=3 2sinΦ.cosΦ= 3-1 2sinΦ.cosΦ=2 sinΦ.cosΦ=1 _eq.1 tanΦ+cotΦ sinΦ upon cos Φ+ cosΦupon sinΦ sinΦsq.+ cos sq.Φ upon sin. cosΦ 1 by 1=1 hence proved

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ANSWER

Find two consecutive odd positive integer sum of whose square is 290

Posted by Raj Pratap Singh 6 years, 2 months ago

CBSE > Class 10 > Mathematics

2 answers

Sonu Rawat 6 years, 2 months ago

11 and 13

1Thank You

Aadya Singh ? 6 years, 2 months ago

13 and 11...

5Thank You

ANSWER

The length of the diagonal a square is 24 centimetre find its area

Posted by Kavita Mishra 6 years, 2 months ago

CBSE > Class 10 > Mathematics

2 answers

Arpit Srivastava 6 years, 2 months ago

288cmsquare

1Thank You

Satjinder Dhillon 6 years, 2 months ago

It means hypotenuse is 24 cm and let other two sides be x cm as squares has all side equal to each other.

Now by pythagoras thm.,

H² = B² + P²

24 X 24 = X²+ X²

^{24 X 24 =}2X²

288 cm² is the area of square

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ANSWER

(cotA+cosecA) (cotA-cosecA)

Posted by Badal Kumar 6 years, 2 months ago

CBSE > Class 10 > Mathematics

3 answers

Chirag Sharma 6 years, 2 months ago

-1

0Thank You

Bhumika Agrawal 6 years, 2 months ago

1Thank You

Rajan Kumar 6 years, 2 months ago

-1

0Thank You

ANSWER

The ratio of the area of two similar triangle is equal the square of the ratio of their corresponding sidess?

Posted by Ujjwal Pandit 6 years, 2 months ago

CBSE > Class 10 > Mathematics

2 answers

Aadya Singh ? 6 years, 2 months ago

True...

0Thank You

??Geetha Sree ?? 6 years, 2 months ago

Ya . There is a theorem even.

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ANSWER

Find the value of k .If the points A(k+1,2k) B(3k,2k+3) and C(5k-1,5k) are collinear?

Posted by Ragahav Singh 6 years, 2 months ago

CBSE > Class 10 > Mathematics

2 answers

Arpit Srivastava 6 years, 2 months ago

1Thank You

Tanishque Agarwal 6 years, 2 months ago

1/2(k+1(2k+3-5k) + 3k (5k - 2k) +5k-1(2k-2k-3))=0 k+1(-3k +3)+3k(3k)+5k-1(-3)=0 -3k²+3k-3k+3+9k²-15k+3=0 6k²-15k+6=0 By using splitting the middle term method, 6k²-12k-3k+6 6k(k-2)-3(k-2) (6k-3)(k-2) K=1/2 or 2

1Thank You

ANSWER

If the 10th term of an AP is 52 and 17th term is 20 more than the 13th term find the AP

Posted by Bhumika Agrawal 6 years, 2 months ago

CBSE > Class 10 > Mathematics