OpenStudy (anonymous):

"Show that cos(-A) = cos(A) and sin(-A) = -sin(A) for any angle A" I know that these have to do with even/odd properties/functions, and that the statements are true, but I'm just not sure how to go about showing it.

3 years ago
OpenStudy (loser66):

read page 4 http://www.mathhands.com/104/hw/104c04s04.pdf

3 years ago
OpenStudy (anonymous):

Ok, thank you!

3 years ago
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