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Mathematics 19 Online
OpenStudy (anonymous):

cos^2 3x+sin^23x=cost(x)

OpenStudy (anonymous):

welcome to OpenStudy :D

OpenStudy (noelgreco):

The left side is a Pythagorean identity.

OpenStudy (jdoe0001):

is that =cot(x) or cos(x)?

OpenStudy (anonymous):

cos(f(x) find f(x)

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