Question

the function 2cosx+√3x

Answer 1

Answer:

Cos 3x is a triple angle identity in trigonometry. It is a specific case of compound angles identity of the cosine function. cos 3x gives the value of cosine trigonometric function for triple angle. The expansion of cos 3x can be derived using the angle addition identity of cosine. Cos 3x identity helps in solving various trigonometric problems. Let us understand the formula of cos 3x, its derivation, graph and application along with examples.