发布时间 ： 2019-04-29 14:20:17 UTC
类别 ： Algebraic
Page Views: 57 views
Trigonometric power reduction formula:
\(sin^2θ = 1 − cos^2θ\)
\(cos^2θ = 1 − sin^2θ\)
\(tan^2θ + 1 = sec^2θ\)
\(tan^2θ = sec^2θ − 1\)
\(1 + cot^2θ = csc^2θ\)
\(cot^2θ = csc^2θ − 1\)