(tanθ+cotθ)^2=sec^2θ+csc^2θ
tan^2θ+2tanθcotθ+cot^2θ=
tan^2θ+2tanθ(1/tanθ)+cot^2θ=
tan^2θ+2+cot^2&theta=;
substitute
sec^2θ-1+2+csc^2θ-1=
sec^2θ+csc^2θ
Jhen N.
asked • 10/19/17(tanθ+cotθ)^2=sec^2θ csc^2θ
Proving identities
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Arthur D.
10/19/17