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OpenStudy (anonymous):
Solve for all: f(x)= cos 2x (a) f(0) (b) f(- π/4) (c) f( π/3)
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OpenStudy (anonymous):
So what is cos (2 times 0)?
OpenStudy (anonymous):
what is cos(2 times -pi/4)
OpenStudy (anonymous):
Any ideas?
OpenStudy (anonymous):
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