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Class 12 Mathematics Trigonometric Functions Trigonometric functions and their propertiesEasyLevel 71

What is \(\cos(\theta-\pi)\) equal to?

Answer and explanation

Correct answer: -\(\cos \theta\)

\(\cos(\theta-\pi)=-\cos \theta\). A difference of \(\pi\) changes the sign of \(\cos \theta\).

Tags

trigonometric-functionsangle-transformationcosine

Frequently asked questions

What is the correct answer to this question?

-\(\cos \theta\)

Why is this the correct answer?

\(\cos(\theta-\pi)=-\cos \theta\). A difference of \(\pi\) changes the sign of \(\cos \theta\).

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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