CBSE > Class 12 > Mathematics | CBSE Board | Homework Help

Just do imp topics such as graph , intergaration main topics and property question if u do imp topics u cld be able to revise full maths even in 2 days also

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Sai Thaini 8 years ago

Enough to score 80+?

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Ashu Pandey 8 years ago

Only do exercise of ncert

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If a young main writes his motorcycle at 25 km per hour. He has to spend ₹2 per kilometre on petrol. If he writes at a faster speed of 40 km per hour, the petrol cost increases to Rs 5 per km. He has rs100 to spend on petrol and wishes to cover the maximum distance within one hour. Express this as L.P.P. and then solve it graphically.

Posted by Prabhat Kumar 8 years ago

CBSE > Class 12 > Mathematics

1 answers

Radhika Tyagi 8 years ago

Refer elements of maths book

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If a matrix A of order 3×3 has determinent 7; find the value of |3A|

Posted by Divakar Dalapathi 8 years ago

CBSE > Class 12 > Mathematics

2 answers

Divakar Dalapathi 8 years ago

Sry u r wrong....

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Benedict Sabu 8 years ago

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Dy÷dx =( 1+x2 )(1 + y2) Solve the above differential equation.

Posted by Ayush Ajmera 8 years ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

If y= cosx-sinx/cosx+sinx,prove that dy/dx+sec2(pi/4^-x)=0

Posted by Jagriti Kumari 8 years ago

CBSE > Class 12 > Mathematics

1 answers

Jeenal Jain 8 years ago

y= 1-tanx/1+tanx=tanπ/4-tanx/1+tanxtanπ/4=tan(π/4-x) dy/dx =sec²(π/4-x)

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How to attempt questions in board

Posted by Nidhi Chourasia 8 years ago

CBSE > Class 12 > Mathematics

0 answers

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Class 10 cbse probability of s chand

Posted by Lovelesh Pandey 8 years ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Solution of 7.2 exercise ncert integration

Posted by Shreya Singh 8 years ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

4/sinx+1/cosx=pie find the value of x . Ques of inverse trigonometric function

Posted by Jaya Maheshwari 8 years ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

sinx+8cotx /4sinx+6cotx

Posted by Vishnukant Agnihotri 8 years ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

A bag contain 3 red ball and 7 black ball .two balls are drawn at random without replacement. If the second selection is given to be red, what Is the probability that the first ball is red

Posted by Aamisha Sonaliya Aamisha 8 years ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Sin90-x

Posted by Ritik Bardiyar 8 years ago

CBSE > Class 12 > Mathematics

2 answers

Ritik Bardiyar 8 years ago

Cosx

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Ritik Bardiyar 8 years ago

Cos

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If and B are matrices of the same order and K is a scaler number then proved that K(A+B)=KA+KB

Posted by Shivanshu Yadav 8 years ago

CBSE > Class 12 > Mathematics

5 answers

Shivanshu Yadav 8 years ago

Oswal ka h

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Aisha Grewal 8 years ago

Iska answer to book m ni ho sakta h kya

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Shivanshu Yadav 8 years ago

Bto yr ????

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Shivanshu Yadav 8 years ago

Good morning answer plz dear

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Aisha Grewal 8 years ago

Good morning ???

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ANSWER

tan1/2[cos^-1√5/3] evaluate

Posted by Shivanshu Yadav 8 years ago

CBSE > Class 12 > Mathematics

6 answers

Shivanshu Yadav 8 years ago

Kyu

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Aisha Grewal 8 years ago

Rehne d gussa aya hua h mre ko

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Shivanshu Yadav 8 years ago

Thnx???

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Aisha Grewal 8 years ago

Put 1/2cos¯¹root 5/3==u....then root 5/3=cos2u......then put identity in tanu........ 1-tan2u /1+tan2u

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Aisha Grewal 8 years ago

Solve ho gya answer h... (3—root 5)/2

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Shivanshu Yadav 8 years ago

Koi to bto yr

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Find the equation of line intersecting the line x+2/1=y-3/2= z+1/4 & x-1/2=y-2/3=z-3/4. And passes through 1, 1, 1

Posted by Akshat Verma 8 years ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Lpp

Posted by Honey Sharma 8 years ago

CBSE > Class 12 > Mathematics

1 answers

Namami Shukla 8 years ago

????

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(a,b) *(c,d) =(ac,b+ad) Find out it is commucative or not

Posted by Abhishek Sharma 8 years ago

CBSE > Class 12 > Mathematics

2 answers

Vishisht Saxena 8 years ago

(a,b)*(c,d) = (ac, b+ad) (c,d)*(a,b) = (ca, d+cb) As, (a,b)*(c,d) =/= (c,d)*(a,b) So, it is not commutative...

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R R 8 years ago

No as (c,d )*(a,b)= (ca,d+cb) which is not equal to given equation in the question

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Find the equation of the tangent and normal to the curve x3+y3=6xy at point (3,3)

Posted by Yuvan Prabhu 8 years ago

CBSE > Class 12 > Mathematics

1 answers

Vishisht Saxena 8 years ago

Given:- (x1, y1) = (3,3). &. 3x + 3y = 6xy. => 3 ( x + y ) = 3 × 2 × xy => x + y = 2xy. Differentiate it w.r.t. x, we get,. 1+ (dy/dx) = 2y + 2x(dy/dx). =>. {2x - 1}.(dy/dx) = 1 - 2y. => (dy/dx) = (-){2y-1}/{2x-1}. Now, using point-slope eqπ form, we have,. (y - y,) = (dy/dx).(x - x,). Now, just put the values and solved it...? ??

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A water tank has the shape of an inverted right circular cone with its axis vertical and vertex lower most.Its semi vertical angle is tanent inverse 0.5 . Water is poured into it at a constant rate of 5 metre cube per hour. Find the rate at which the level of the water is rising at the instant when the depth of water in the tank is 4 metres

Posted by Lalit Karotiya 8 years ago

CBSE > Class 12 > Mathematics