Hey guys.

I've got this function.

g (x) = 1 - cos (pi - 2x)

I must prove this is an even function.

All I got was g (-x) = 1 - cos (pi + 2x), but I can't pass this point. Where do I go from here? Any help would be appreciated. Thank you.

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- May 3rd 2010, 06:55 AM #1

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