What is the fundamental period of (\cos(4\theta))?

Question

Answer and explanation

Correct answer: (\frac{\pi}{2})

The fundamental period of ( \cos k\theta) is ( \frac{2\pi}{k}), so here it is ( \frac{\pi}{2}). In exams put the coefficient in the denominator.

What is the correct answer to this question?

(\frac{\pi}{2})

Why is this the correct answer?

The fundamental period of ( \cos k\theta) is ( \frac{2\pi}{k}), so here it is ( \frac{\pi}{2}). In exams put the coefficient in the denominator.

Which subject and chapter does this question cover?

This is a Class 12 Mathematics question. Chapter: Trigonometric Functions. Topic: Trigonometric functions and their properties.