Math Calculator

Trigonometry identities Power Reduction

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.

Calculator

 
Enter u angle in degree:
 
Result:

 
   

Formula Used:

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

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