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 7 years, 9 months ago

Enough to score 80+?

1Thank You

Ashu Pandey 7 years, 9 months 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 7 years, 9 months ago

CBSE > Class 12 > Mathematics

1 answers

Radhika Tyagi 7 years, 9 months ago

Refer elements of maths book

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ANSWER

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

Posted by Divakar Dalapathi 7 years, 9 months ago

CBSE > Class 12 > Mathematics

2 answers

Divakar Dalapathi 7 years, 9 months ago

Sry u r wrong....

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Benedict Sabu 7 years, 9 months ago

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ANSWER

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

Posted by Ayush Ajmera 7 years, 9 months 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 7 years, 9 months ago

CBSE > Class 12 > Mathematics

1 answers

Jeenal Jain 7 years, 9 months 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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ANSWER

How to attempt questions in board

Posted by Nidhi Chourasia 7 years, 9 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Class 10 cbse probability of s chand

Posted by Lovelesh Pandey 7 years, 9 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Solution of 7.2 exercise ncert integration

Posted by Shreya Singh 7 years, 9 months 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 7 years, 9 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

sinx+8cotx /4sinx+6cotx

Posted by Vishnukant Agnihotri 7 years, 9 months 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 7 years, 9 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Sin90-x

Posted by Ritik Bardiyar 7 years, 9 months ago

CBSE > Class 12 > Mathematics

2 answers

Ritik Bardiyar 7 years, 9 months ago

Cosx

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Ritik Bardiyar 7 years, 9 months ago

Cos

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ANSWER

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 7 years, 9 months ago

CBSE > Class 12 > Mathematics

5 answers

Shivanshu Yadav 7 years, 9 months ago

Oswal ka h

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Aisha Grewal 7 years, 9 months ago

Iska answer to book m ni ho sakta h kya

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Shivanshu Yadav 7 years, 9 months ago

Bto yr ????

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Shivanshu Yadav 7 years, 9 months ago

Good morning answer plz dear

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Aisha Grewal 7 years, 9 months ago

Good morning ???

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ANSWER

tan1/2[cos^-1√5/3] evaluate

Posted by Shivanshu Yadav 7 years, 9 months ago

CBSE > Class 12 > Mathematics

6 answers

Shivanshu Yadav 7 years, 9 months ago

Kyu

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Aisha Grewal 7 years, 9 months ago

Rehne d gussa aya hua h mre ko

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Shivanshu Yadav 7 years, 9 months ago

Thnx???

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Aisha Grewal 7 years, 9 months 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 7 years, 9 months ago

Solve ho gya answer h... (3—root 5)/2

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Shivanshu Yadav 7 years, 9 months ago

Koi to bto yr

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ANSWER

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 7 years, 9 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Lpp

Posted by Honey Sharma 7 years, 9 months ago

CBSE > Class 12 > Mathematics

1 answers

Namami Shukla 7 years, 9 months ago

????

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ANSWER

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

Posted by Abhishek Sharma 7 years, 9 months ago

CBSE > Class 12 > Mathematics

2 answers

Vishisht Saxena 7 years, 9 months 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 7 years, 9 months ago

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

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ANSWER

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

Posted by Yuvan Prabhu 7 years, 9 months ago

CBSE > Class 12 > Mathematics

1 answers

Vishisht Saxena 7 years, 9 months 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 7 years, 9 months ago

CBSE > Class 12 > Mathematics