Is the given equation an identity? cot ⁡ 2 x cos ⁡ 2 x = cot ⁡ 2 x + sin ⁡ 2 x − 1 \cot^2x\cos^2x=\cot^2x+\sin^2x-1 cot 2 x cos 2 x = cot 2 x + sin 2 x − 1

Introduction to Trigonometric Identities

12. Trigonometric Identities / Introduction to Trigonometric Identities / Problem 1

Problem 1

Is the given equation an identity?
$\cot^2x\cos^2x=\cot^2x+\sin^2x-1$

Yes