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

Ask questions which are clear, concise and easy to understand.

Ask Question

Show that y=sin x/x is increasing function in (0,pi/2)

Posted by Amit Gupta 7 years, 4 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

While integrating log sinx why do we change limits to 90 from 180 ..referring question 16 exercise 7.11

Posted by Muskaan Joshi 7 years, 4 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Under root cosx upon sinx dx integrate

Posted by Nitin Kumar 7 years, 4 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

integration of (√a -√x)÷(1-√ax) wrt dx

Posted by Himanshu G 7 years, 4 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Is it necessary to give the exam of additional subject..or v hv a choice to give the exam or not.?

Posted by Kapil Singh 7 years, 4 months ago

CBSE > Class 12 > Mathematics

4 answers

Rochie Joshi 7 years, 4 months ago

Yr mere sath bi asa hi h pr m dungi ppr.

1Thank You

Radhika Tyagi 7 years, 4 months ago

Agr additional me fail ho jaenge to ppr to dobara dena pdega na

2Thank You

Tanya Goyal 7 years, 4 months ago

But de dena chahiye.....ye rh jata h ki bche ko knowledge toh h sub ki

1Thank You

Radhika Tyagi 7 years, 4 months ago

We hv a choice

2Thank You

ANSWER

The sum of the first 4 terms of A.P is 56, the sum of the last 4 terms is 112 if its first term is 11, then find the number of terms.

Posted by Tsn Murty 7 years, 4 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Integration of sinx/sin^4x+cos^4x

Posted by Krishna Nekela 7 years, 4 months ago

CBSE > Class 12 > Mathematics

1 answers

Mohammad Anas 7 years, 4 months ago

firstly divide by cos^4x then let secx = t then put t^2 for partial fraction and then solve u will get the ans

0Thank You

ANSWER

Sin inverse cos 33 pi by 5

Posted by Laxman Singh 7 years, 4 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Intrigation of sinx/sin^4x+cos^4x

Posted by Yug Saini 7 years, 4 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

esin-1xdx

Posted by Pradumn Kumar 7 years, 4 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Find the particular solutions of the differential equation (tan^-1y-x)dy=(1+y^2)dx given that x=0 when y=0.

Posted by Aditya Vyavahare 7 years, 4 months ago

CBSE > Class 12 > Mathematics

1 answers

Ashish Sharma 7 years, 4 months ago

dx/dy=tan^-1y-x/1+y^2 =tan^-1y/1+y^2 - x/1+y^2 dx/dy + x/1+y^2 = tan^-1y/1+y^2 This is a linear differential equation of the form dx/dy+Px=Q Where P=1/1+y^2 and Q=tan^-1y/1+y^2 Integrating factor(I.F)=e^integral of 1/1+y^2 dy =e^tan^-1y Therfore the solution of this differential equation is given by, x(I.F)=integral of Q ×(I.F) dy +C x.tan^-1y=integral of tan^-1y/1+y^2 × e^tan^-1y dy +C put tan^-1y=t And, 1/1+y^2dy=dt x e^t=integral of t × e^t dt +C On RHS side use by part rule and we get x e^t= e^t(t-1) +C On division by e^t both side we get x=(t-1) +C.e^-t Put t=tan^-1y x=( tan^-1y -1) + C.e^-tan^-1y This is the required solution.

2Thank You

ANSWER

How we solve slope of a tangent?

Posted by Sarkar Singh 7 years, 4 months ago

CBSE > Class 12 > Mathematics

1 answers

Tanya Goyal 7 years, 4 months ago

Eqn given hogi.....uska first derivate kro....dy/dx = slope of tangent

0Thank You

ANSWER

Distance of plane 2x -3y+6z+14=0 from the plane is equal to

Posted by Davi Singh 7 years, 4 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

If not in a good way to start

Posted by Muskan Baghla 7 years, 4 months ago

CBSE > Class 12 > Mathematics

1 answers

Lakshay Saxena 7 years, 4 months ago

What...??

0Thank You

ANSWER

√1/sinx+1/cosx dx

Posted by Ritik Rajput 7 years, 4 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Can you please explain how to solve different ques related to one one and on to function

Posted by Aakriti T 7 years, 4 months ago

CBSE > Class 12 > Mathematics

2 answers

Tanya Goyal 7 years, 4 months ago

When f(x)is invertible....it is one one onto........for this we prove f g (x) and g f(x) equal to y and x hence it is invertible

0Thank You

Shruti Jain 7 years, 4 months ago

4 one one take 2 elements x1 and x2 and put it in f (x) and after that show x1=x2 if x1=x2 then the function is one one and 4 onto take y=f(x) and by this find value of x after finding value of put that value in function if y=f'(x) then the function is onto

1Thank You

ANSWER

Whoch chapter are easy and make me pass

Posted by Anshul Singj Rajpoot 7 years, 4 months ago

CBSE > Class 12 > Mathematics

3 answers

Lakshay Saxena 7 years, 4 months ago

Vector

0Thank You

Lakshay Saxena 7 years, 4 months ago

Aoi, differential equation, linear programing, differentiation

0Thank You

Kajal Bhardwaj 7 years, 4 months ago

Matrices vectors relation and function

0Thank You

ANSWER

(√26)

Posted by Ml Sharma 7 years, 4 months ago

CBSE > Class 12 > Mathematics

1 answers

Tanya Goyal 7 years, 4 months ago

Hum 25 ka root nikal skte h....error 1 ka......root x ka derivative liya.....now x=25 and error one put kiya .....phir 5 me error wali amt pluss krr denge

0Thank You

ANSWER

How i can complete countinuty chapter

Posted by Arjun Bhadoria 7 years, 4 months ago

CBSE > Class 12 > Mathematics