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 Power Reduction

• Enter U Angle

• Result:

Formula Used:

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

Trigonometry Identities Power Reduction calculation is made easier here.