Power Reducing Formula Calculator
Power reducing formula calculator uses the power reducing formula to rewrite the expression.
The power reduction formulas are obtained by solving the second and third versions of the
cosine double-angle and half-angle formulas. In power reduction formulas, a trigonometric
function is raised to a power (such as sin2α or cos 2 α). The use of a power reduction formula
expresses the quantity without the exponent. Here, sin2α or cos 2 α = 1.
Formula
sin2θ = [1 - cos(2θ) ] / 2
cos2θ = [1 + cos(2θ) ] / 2
tan2θ = [1 - cos(2θ) ] / [1 + cos(2θ) ]