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OpenStudy (anonymous):
cos2θ=2-2sin^2θ
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OpenStudy (anonymous):
cos2a = cos^2a - sin^2a = 1 - 2sin^2a
OpenStudy (anonymous):
can you simpliy that for me i need it to be like something around θ=40 degrees or what ever it would be
OpenStudy (anonymous):
???
OpenStudy (anonymous):
you can't get the answer no solution
OpenStudy (anonymous):
but it doesnt say simplify is says to solve for θ
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