tan^2=?

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tan^2=?tan^2=?tan^2=?tan^2θ表示θ的正切值(tanθ)的平方tan^2θ=(tanθ)^2=(sinθ/cosθ)^2=sin^2θ/cos^2θ=sin^2θ/(1-sin

tan^2=?
tan^2=?

tan^2=?
tan^2θ表示θ的正切值(tanθ)的平方
tan^2θ=(tanθ)^2=(sinθ/cosθ)^2 = sin^2θ/cos^2θ
= sin^2θ/(1-sin^2θ)
= (1-cos^2θ)/cos^2θ