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Class 12 Mathematics Trigonometric Functions Trigonometric functions and their propertiesHardLevel 70

What is the period of (f(x)=\cos x+\cos 2x)?

Answer and explanation

Correct answer: (2\pi)

The period of (\cos x) is (2\pi) and that of (\cos 2x) is (\pi). Their common fundamental period is (2\pi).

Tags

trigonometric-functionsperiodcosine

Frequently asked questions

What is the correct answer to this question?

(2\pi)

Why is this the correct answer?

The period of (\cos x) is (2\pi) and that of (\cos 2x) is (\pi). Their common fundamental period is (2\pi).

Which subject and chapter does this question cover?

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

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