Theory of Intelligence
11TH•Mathematics•Trigonometric Identities•Question 3

(ii)

Prove the following identities:

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(ii)

sin⁡8x+sin⁡2xcos⁡8x+cos⁡2x=tan⁡5x\dfrac{\sin 8x + \sin 2x}{\cos 8x + \cos 2x} = \tan 5x

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