neilvarghese7 neilvarghese7

12-02-2021
Mathematics

contestada

prove that sec^2θcosec*2θ-2-cot^2θ=tan2θ

Respuesta :

12-02-2021

Answer:

Step-by-step explanation:

I think you mean tan^2θ, not tan2θ.

Use the trigonometric identities

secθ = 1/cosθ

cscθ = 1/sinθ

tanθ = sinθ/cosθ

sin²θ = 1-cos²θ

cos²θ = 1-sin²θ

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