Prove the following trigonometric identities-sin 2 A cos 2 B-cos 2 A sin 2 B-sin 2 A-sin 2 B

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Trigonometric Ratios of Multiples of an Angle

Prove the fol...

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Prove the following trigonometric identities.

sin² A cos² B − cos² A sin² B = sin² A − sin² B

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Prove the following trigonometric identities:\

$\frac{1 + c o s A}{s i n^{2} A} = \frac{1}{1 - c o s A}$

Prove the following trigonometric identities:

$(1 + t a n^{2} A) + (1 + \frac{1}{t a n^{2} A}) = \frac{1}{s i n^{2} A - s i n^{4} A}$

\frac{(t a n^{2} A - t a n^{2} B = (s i n^{2} A - s i n^{2} B)}{(C o s^{2} A \times C o s^{2} B)}

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