Question

Prove that tan^2θcos^2θ=1-cos^2θ

Answer 1

Hi there,

LHS ⇒tan²Фcos²Ф

⇒sin²Ф/cos²Ф.cos²Ф

⇒sin²Ф

Again,

RHS ⇒1-cos²Ф

⇒sin²Ф {∴ sin²Ф= 1-cos²Ф}

Hence, RHS=LHS {proved}

Answer 2

Heya Friend !!

Please view the solution in the attachment .

hope it helps :)