Math, asked by jasu2005, 11 months ago

If 4 cos? A - 3 = 0 and 0° SA < 90°, then prove that:
(i) sin 3 A = 3 sin A - 4 sin A
(ii) cos 3 A = 4 cos' A - 3 cos A

Answers

Answered by Sreekuttan1246

1

Answer:

Step-by-step explanation:

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