1) find sin2x, cos2x, sin x/2, and cos x/2 if sin x= -1/8 2) simplify (cot^2 x-1)/(1+cot^2 x)

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1) find sin2x, cos2x, sin x/2, and cos x/2 if sin x= -1/8 2) simplify (cot^2 x-1)/(1+cot^2 x)
1) find sin2x, cos2x, sin x/2, and cos x/2 if sin x= -1/8

2) simplify (cot^2 x-1)/(1+cot^2 x)

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