Wednesday

October 22, 2014

October 22, 2014

Posted by **Chris** on Thursday, April 25, 2013 at 11:42am.

A.

cos2^x

B.

-cos2^x

C.

cos2^x + 1

D.

cos^2x − 1

E.

-cos^2x + 1

- Calc -
**Steve**, Thursday, April 25, 2013 at 11:47amthat would be (B)

**Answer this Question**

**Related Questions**

maths - Choose the option that gives an expression for the indefinite integral...

Mathamatics - Solve the following trigonometry identities. a) 1-cos2(theta) = ...

trig help much appreciated! :)) - 1. Find the complete exact solution of sin x...

Maths - if in a triangle ABC m angle A=π/2, then value of cos2 A + cos2 B...

Pre Calculus - Use one of the identities cos(t + 2šk) = cos t or sin(t + 2šk) = ...

Pre Calculus - Use one of the identities cos(t + 2šk) = cos t or sin(t + 2šk) = ...

maths - If S=1/2^2cos1 + 1/cos1¤cos2+1/2^3 cos1 ¤cos2¤cos2^2 + .......... upto ...

Precalculus - Use one of the identities cos(t + 2πk) = cos t or sin(t + 2&#...

algebra - Can someone please help me do this problem? That would be great! ...

TRIG! - Posted by hayden on Monday, February 23, 2009 at 4:05pm. sin^6 x + cos^6...