Verifying a trigonometric Identities

The video tutorial explains how to verify a trigonometric equation by simplifying the left side using trigonometric identities. It starts with the equation y * 1 plus sine of negative Y equals cosine squared of Y. The instructor uses even and odd trigonometric identities to rewrite terms and then applies the difference of squares to simplify the expression. Finally, the instructor verifies that the simplified left side equals the right side, confirming the equation's validity.

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