Friday

March 27, 2015

March 27, 2015

Posted by **sam** on Sunday, February 7, 2010 at 6:45pm.

I just dont understand how to do it....

- calculus -
**bobpursley**, Sunday, February 7, 2010 at 6:56pmIsn't there are identity

sin2x=1-2sin^2 x ?

- calculus -
**sam**, Sunday, February 7, 2010 at 7:03pmI dont understand what you are saying. there is no sin2x in my equation i dont think

i have to evaluate the integral 2(sin^2x)

- calculus -
**MathMate**, Sunday, February 7, 2010 at 7:36pmTry

sin(x)sin(y)=(1/2)(cos(x-y)-cos(x+y))

Put y=x and noting that cos(0)=1, you will have a simpler expression to integrate.

**Answer this Question**

**Related Questions**

Math - can someone sow me step by step how to evaluate the integral of the ...

calculus - how to i evaluate the integral of dx/ (x^2 +9) with a u substitution ...

Calculus - Can someone show me a step by step process, along with explanations ...

math - I dont understand this calculus problem at all. can someone show me step ...

math - a rectangle is to be inscribed under the arch of the curve y = 2cosx from...

maths - trigonometry - I've asked about this same question before, and someone ...

Physics - Can someone please show me step by step how to normalize e^-5x in the ...

Calculus - Solve the IVP {y'=-(sinx)y + xexp(cosx) y(0) = 1 Please show me step ...

Calculus - Evaluate the following integral integral 1 = a and b = 4 of sinx dx/(...

Mathematics I - Evaluate definite integral from -2 to 0. Integral((x^2)(e^((x^3...