Thursday

August 21, 2014

August 21, 2014

Posted by **anon** on Saturday, March 12, 2011 at 5:30pm.

(integer sign) cos^2 5x dx

A.(integer sign) 1 + cos 10x / 2 dx

B.(integer sign) 1 - cos 10x / 2 dx

C.(integer sign) 1 + cos 10x / 20 dx

D.(integer sign) 1 - cos 10x / 20 dx

A <<

- calculus -
**MathMate**, Saturday, March 12, 2011 at 5:58pmCorrect.

A.

∫(1 + cos(10x))/2 dx

using

cos(a)cos(b)=(1/2)(cos(a-b)+cos(a+b))

- calculus -
**anon**, Saturday, March 12, 2011 at 6:20pmThank you.

- calculus :) -
**MathMate**, Saturday, March 12, 2011 at 7:19pm:)

**Related Questions**

calculus - Posted by Paul on Friday, February 19, 2010 at 3:57am. I have the ...

Calculus - Find all points on the graph of the function f(x) = 2 cos x + cos^2 ...

math - Prove this identity (cos - 1) / (cos^2 ) = sec - sec^2 I have a ...

calculus - Differentiate. y= (cos x)^x u= cos x du= -sin x dx ln y = ln(cos x)^x...

Calculus problem - Evaulate: integral 3x (sinx/cos^4x) dx I think it's sec3 x , ...

Pre-Cal - Find the 5 roots of x^5+1=0 in polar and Cartesian form. (x^5 means x ...

PRECAL! - Prove: (3cosx + 4sinx)^2 + (4cosx - 3sinx)^2=5 ...this is all under ...

Calc. - Differentiate. y= (cos x)^x u= cos x du= -sin x dx ln y = ln(cos x)^x ln...

precal! - Prove: (3cosx + 4sinx)^2 + (4cosx - 3sinx)^2=5 ...this is all under ...

math - Determine exact value of cos(cos^-1(19 pi)). is this the cos (a+b)= cos a...