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#1 Re: Help Me ! » Help!!! » 2009-11-26 06:19:50

Ok, so if n is even x=0 x=k*pi, and if n is odd x=0 x=3pi/2+2*k*pi???

#2 Help Me ! » Help!!! » 2009-11-25 15:09:06

Pixel
Replies: 3

There's no answer for this in the back of the book and I just want to make sure I did it correctly. If anyone could post their answer, I would appreciate it! Thanks.

Cos^2(x) + sin^2 (x) =1 for every real value of x.(Pythagorean theorem)
What real values of x will be a solution to cos^n (x)- sin^n (x) =1, for a given positive integer n?

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