Mathematics, 29.03.2021 23:30 moss4951

Please verify the following trigonometric identities. 1. $\frac{\sin^3x + \cos^3x}{\sin x + \cos x} = 1 - \sin x \cos x$

2. $\frac{\tan x + \tan y}{\cot x + \cot y} = \tan x \tan y$

3. $\tan(\frac{\pi}{2}) + \cos x \tan(\frac{\pi}{2}) = \sin x$

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Please verify the following trigonometric identities. 1. 2. 3.

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Another question on Mathematics

Please verify the following trigonometric identities. 1. $\frac{\sin^3x + \cos^3x}{\sin x + \cos x} = 1 - \sin x \cos x$

2. $\frac{\tan x + \tan y}{\cot x + \cot y} = \tan x \tan y$

3. $\tan(\frac{\pi}{2}) + \cos x \tan(\frac{\pi}{2}) = \sin x$