Trigonometry identities Power Reduction Calculator

Trigonometry calculator to rewrite and evaluate the trigonometric functions using power reduction formulas. The power reduction formulas are obtained by solving the second and third versions of the cosine double-angle formula.

Trigonometry identities Power Reduction Calculation

Enter u angle in degree:
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Formula Used:

sin2θ = [1 - cos(2θ) ] / 2 cos2θ = [1 + cos(2θ) ] / 2 tan2θ = [1 - cos(2θ) ] / [1 + cos(2θ) ]

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