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Class 12 Mathematics Trigonometric Functions Trigonometric functions and their propertiesMediumLevel 71

What is (\cos(2\pi-x)) equal to?

Answer and explanation

Correct answer: (\cos x)

(2\pi-x) lies in the fourth quadrant and (\cos x) remains positive. Hence (\cos(2\pi-x)=\cos x).

Tags

allied-anglescosinequadrants

Frequently asked questions

What is the correct answer to this question?

(\cos x)

Why is this the correct answer?

(2\pi-x) lies in the fourth quadrant and (\cos x) remains positive. Hence (\cos(2\pi-x)=\cos x).

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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