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

(iv)

Prove the following identities:

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(iv)

sin⁡80∘+sin⁡40∘cos⁡80∘+cos⁡40∘=3\dfrac{\sin 80^\circ + \sin 40^\circ}{\cos 80^\circ + \cos 40^\circ} = \sqrt{3}

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