Wednesday
July 23, 2014

Homework Help: Math

Posted by Katie on Wednesday, February 25, 2009 at 7:12pm.

I have the answer to this question but I have no idea how to get there.

Solve for all values of x if 0x2.
cos(4x)+cos(4x)=0

The answer I have is:
x=/8, 3/8, 5/8, 7/8, 9/8, 11/8, 13/8, /4,3/4, 5/4, 7/4

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