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OpenStudy (anonymous):
find the value of θ in the equation cos2θ+sin²θ=cos³θ+3θ-6
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OpenStudy (anonymous):
Well cos(2t)=cos^2(t)-sin^2(t); so the sin^2(t)'s cancel.
OpenStudy (anonymous):
okay so i did that and got cos^2x= cos^3+3x-6 then cos^2x-cos^3x = 3x-6
OpenStudy (anonymous):
@malevolence19
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