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Prove a Trigonometric Identity for Tangent and Cotangent

Prove: (1+ cot^2 θ/1+tan^2 θ)=cot^2 θ

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tan u = sin u/cos u

cot u = cos u/ sin u

1 + cot^2 u = 1 + cos^2u/ sin^2u =[ sin^2 u ...

Solution Summary

A trigonometric identity is proven The solution is detailed and well presented. The response received a rating of "5" from the student who originally posted the question.