Tuesday
July 22, 2014

Homework Help: Trigonometry

Posted by . on Tuesday, April 20, 2010 at 4:03pm.

Verify the identity.

sin2x/cosx + sinx = 2sinx


Solve for all values of x:

6cos2x-7cosx-3=0

If f(x)=cos1/2x-sin2x find the value of
f(pi)

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