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

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

Ask Question

Z=3x+2y

Posted by Abhishek Patel 8 years, 1 month ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

integration 0 to pi/4 (sin x+cos x)/(3+sin2x)

Posted by Vaibhav Gupta 8 years, 1 month ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

How to prepare integration in a week

Posted by Jai Bhatia 8 years, 1 month ago

CBSE > Class 12 > Mathematics

1 answers

Rishika Garg 8 years, 1 month ago

First of all complete your ncert along with examples it took me about 6 hrs to complete it then move on to Rd since we don't have much time so I am thinking of doing only examples ......ps. I am not clear with the properties of definite integration Hope it helps?

0Thank You

ANSWER

Two coins are tossed . what is the probability of coming up two heads if it is known that at least one head comes up.

Posted by Nishkarsh Goyal 8 years, 1 month ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Evaluate integration(x-1\x3)ex+1x

Posted by Vaibhav Sharma 8 years, 1 month ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Formula of cot3x

Posted by Rohan Ray 8 years, 1 month ago

CBSE > Class 12 > Mathematics

1 answers

Yugantar Borah 8 years, 1 month ago

3cotx - CPT౩^/ 1 - 3cot २^ 3^ : 3cube. & २^ : square

0Thank You

ANSWER

Integration of e (exponential) raise to the power 1/y (one upon y)

Posted by Sourabh Jain 8 years, 1 month ago

CBSE > Class 12 > Mathematics

1 answers

Nikhil Verma 8 years, 1 month ago

integration with respect to dy or dx.we don't know this question is incomplete

2Thank You

ANSWER

In a lot of 12 microwave ovens , thare are 3 defective units. A person has ordered 4 of these units and since each is identically packed. what is the probability that (1) all units are good. (2) exactly 3 units are good

Posted by Ramandeep Bhullar 8 years, 1 month ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Integration of Underoot tanx

Posted by Yash Shukla 8 years, 1 month ago

CBSE > Class 12 > Mathematics

1 answers

Nikhil Verma 8 years, 1 month ago

∫√(tan x) dx Let tan x = t2 ⇒ sec2 x dx = 2t dt ⇒ dx = [2t / (1 + t4)]dt ⇒ Integral ∫ 2t2 / (1 + t4) dt ⇒ ∫[(t2 + 1) + (t2 - 1)] / (1 + t4) dt ⇒ ∫(t2 + 1) / (1 + t4) dt + ∫(t2 - 1) / (1 + t4) dt ⇒ ∫(1 + 1/t2 ) / (t2 + 1/t2 ) dt + ∫(1 - 1/t2 ) / (t2 + 1/t2 ) dt ⇒ ∫(1 + 1/t2 )dt / [(t - 1/t)2 + 2] + ∫(1 - 1/t2)dt / [(t + 1/t)2 -2] Let t - 1/t = u for the first integral ⇒ (1 + 1/t2 )dt = du and t + 1/t = v for the 2nd integral ⇒ (1 - 1/t2 )dt = dv Integral = ∫du/(u2 + 2) + ∫dv/(v2 - 2) = (1/√2) tan-1 (u/√2) + (1/2√2) log(v -√2)/(v + √2)l + c = (1/√2) tan-1 [(t2 - 1)/t√2] + (1/2√2) log (t2 + 1 - t√2) / t2 + 1 + t√2) + c = (1/√2) tan-1 [(tanx - 1)/(√2tan x)] + (1/2√2) log [tanx + 1 - √(2tan x)] / [tan x + 1 + √(2tan x)] + c

0Thank You

ANSWER

what is a plane........... ??? what are the imp. formulas of plane??

Posted by Anjali Tamboli 8 years, 1 month ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Need CBSE sample paper for maths class 12

Posted by Ali Abbas 8 years, 1 month ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

X^2/xsinx+cosx

Posted by Nishant Rajput 8 years, 1 month ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

12 board ncert question

Posted by Priyanshu Kumar 8 years, 1 month ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Sample paper of mathematics 2017

Posted by Gaurav Kumar 8 years, 1 month ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

If f(x)=√x^2+1 g(x)=x+1%x^2 ,h(x)=2x-3 then findf'[h'{g'(x)}]

Posted by Kunal Sharma 8 years, 1 month ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Value of sin 90

Posted by Atul Kumar 8 years, 1 month ago

CBSE > Class 12 > Mathematics

1 answers

Shailesh Yadav 8 years, 1 month ago

0Thank You

ANSWER

DY by DX equal to X square + Y square + 1 by 2 x y y y 1 equal to 1

Posted by Sudhir Modi 8 years, 1 month ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Integration of 0w,r,t x

Posted by Rajeev Ranjan Pratap 8 years, 1 month ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

When x2+y^2.not be equal to square of x and yin diffrention

Posted by Saloni Mehra 8 years, 1 month ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Integration of sin inverse x

Posted by Pulkit Jain 8 years, 1 month ago

CBSE > Class 12 > Mathematics

1 answers

Rishika Garg 8 years, 1 month ago

1/√1-x^2

0Thank You

ANSWER

Cosa/1-sina+sina/1-cosa+1=sinacosa/(1-sina)(1-cosa)

Posted by Tamil Selvi 8 years, 1 month ago

CBSE > Class 12 > Mathematics

1 answers

Rajeev Malhotra 8 years, 1 month ago

{tex}cosA/1-Sin A +Sin A/1- Cos A +1{/tex}

{tex}Cos A(1-Cos A)+Sin A(1-Sin A)+(1-Sin A)(1-Cos A)/(1-Sin A) (1-Cos A){/tex}

{tex}Cos A- Cos^2A+Sin A- Sin^2A+1-SinA- Cos A+Sin ACos A/(1-Sin A)(1-CosA){/tex}

{tex}1-(Cos^2A+Sin ^2A)+SinA CosA/ (1-SinA)(1-CosA){/tex}

{tex}1-1+SinA Cos A/ (1-Sin A)(1-CosA){/tex}

{tex}Sin A CosA/ (1-Sin A)(1-CosA){/tex}

L.H.S = R.H.S

0Thank You

ANSWER

Asdfg

Posted by Gaurav Sharma 8 years, 1 month ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

How to calculate value of sin 75 degree

Posted by Aashu Singh 8 years, 1 month ago

CBSE > Class 12 > Mathematics

1 answers

Ayush Balyan 8 years, 1 month ago

sin75=sin (30+45)=sin30. cos45+cos30.sin45 =(1+root3)/2.root 2

2Thank You

ANSWER

How to calculate value of 75 degree

Posted by Aashu Singh 8 years, 1 month ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

What is integration

Posted by Aditya Singh 8 years, 1 month ago

CBSE > Class 12 > Mathematics

1 answers

Ishu Dagar 8 years, 1 month ago

Anti - derivative. Or togethering of small parts of anything is known as integration

1Thank You

ANSWER

Find the equation of the plane passing through the point (3,-1,2) and which is perpendicular to the line determine by the point A(4,3,-2) and B(2,-3,6)

Posted by Sakshi Arora 8 years, 1 month ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

integrate (sin inverse x)whole square

Posted by Monish Khan 6 years, 6 months ago

CBSE > Class 12 > Mathematics

1 answers

Sia ? 6 years, 6 months ago

Putting {tex}x = \sin \theta \Rightarrow dx = \cos \theta d\theta {/tex}

{tex}\therefore \int {{{\left( {{{\sin }^{ - 1}}x} \right)}^2}} dx{/tex}

{tex}= \int {{\theta ^2}\cos \theta } d\theta {/tex}

[Applying product rule]

{tex} = {\theta ^2}\sin \theta - \int {2\theta \sin \theta d\theta } {/tex}

{tex}= {\theta ^2}\sin \theta - 2\int {\theta \sin \theta d\theta }{/tex}

[Again applying product rule]

{tex}= {\theta ^2}\sin \theta - 2\left[ {\theta \left( { - \cos \theta } \right) - \int {1.\left( { - \cos \theta } \right)d\theta } } \right]{/tex}

{tex}= {\theta ^2}\sin \theta + 2\theta \cos \theta - 2\int {\cos \theta d\theta } {/tex}

{tex}= {\theta ^2}\sin \theta + 2\theta \cos \theta - 2\sin \theta + c{/tex}

{tex}= x{\left( {{{\sin }^{ - 1}}x} \right)^2} + 2\sqrt {1 - {x^2}} {\sin ^{ - 1}}x - 2x + c{/tex}

0Thank You

ANSWER

ABCD IS A PARALLELOGRAM. P nd q are the mid point of the side AB vector nd DC vector respectivily .show that DP vvector nd BQ vector trisect AC vecyor nd are trisect by AC vector

Posted by Suraj Pandey 8 years, 1 month ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

What is use of integration in our future?

Posted by Vikrant Singh 6 years, 6 months ago

CBSE > Class 12 > Mathematics

1 answers

Sia ? 6 years, 6 months ago

Calculus is used to improve the architecture not only of buildings but also of important infrastructures such as bridges. In Electrical Engineering,
Calculus (Integration) is used to determine the exact length of power cable needed to connect two substations, which are miles away from each other.

0Thank You

ANSWER

How to prepare integration in 13 days

Posted by Shivam Kaushal 8 years, 1 month ago

CBSE > Class 12 > Mathematics