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Mathematics 12 Online
OpenStudy (anonymous):

Simplify (1 − cos x)(1 + cos x). 1 cos2 x sin2 x tan2 x

OpenStudy (anonymous):

sin2 x

OpenStudy (anonymous):

medal plz :)

OpenStudy (anonymous):

Thanks a bunch, I am new to openstudy. How do I award you with a medal?

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