Prove the following trigonometric identities-1- 2 A sin 2 A -1

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Complementary Trigonometric Ratios

Prove the fol...

Question

Prove the following trigonometric identities.

(1 + cot² A) sin² A = 1

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\frac{1}{\sec A - 1} + \frac{1}{\sec A + 1} = 2 cosec A \cot A

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