Sunday

April 20, 2014

April 20, 2014

Posted by **Allessandra** on Saturday, December 17, 2011 at 12:52am.

Thanks!

- Maths -
**drwls**, Saturday, December 17, 2011 at 2:37amWell, the derivative is 3 sin^2x cosx. You get that using the "chain rule"

That means the derivative of (sin^3x)/3 is sin^2x cosx

So the indefinite integral of sin^2x cosx is sin^3x/3

For the definite integral, subtract sin^3(pi/2)/3 from sin^3(0)/3

The answer is -1/3, assuming the integral goes backwards from pi/2 to zero, as you seem to imply.

If the integration is in the forward direction, the answer is 1/3.

**Related Questions**

trigo help! - 1. differentiate cos(3/x) 2. differentiate sin(4/x) 3. ...

Differentiate - Can someone please differentiate y = sin x / x for me? What I ...

Math/Calculus - How would I integrate the following by parts: Integral of: (x^2...

MATHS...PLEASE HELP - Differentiate sin(cubed)x with respect to x. Hence find (...

Calculus - How would you differentiate each function? 1.) v(t)= sin^2 (sqrt (t...

Maths - Calculus - Can anyone help with this...I need to find the derivative of...

Maths - Calculus - Can anyone help with this...I need to find the derivative of...

Calculus - Consider the function f(x)=sin(1/x) Find a sequence of x-values that ...

Calculus - Consider the function f(x)=sin(1/x) Find a sequence of x-values that ...

maths - Expand (1+2x)^20 - (1-2x)^20) in ascending powers of x up to the term in...