Question

Solve the trigonometric equation cos³x

Answer 1

The formula of cos³x is given below. It is essential to know that cos 3 x = 4cos^3 x - 3 cos x. Hence the value of cos^3 x is cos 3x + 3cos x /4. ... The formula for every element is given based on the pythagorean identities. plz mark it a brainlist

Answer 2

Answer:

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