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Class 12 Mathematics Trigonometric Functions AnglesHardLevel 68

If an angle is (\frac{31\pi}{3}), what is its principal angle?

Answer and explanation

Correct answer: (\frac{\pi}{3})

Remove (\frac{30\pi}{3}=10\pi) from (\frac{31\pi}{3}) to get (\frac{\pi}{3}). In exams, remove the nearest multiple of (2\pi).

Tags

trigonometry angles principal hard class11

Frequently asked questions

What is the correct answer to this question?

(\frac{\pi}{3})

Why is this the correct answer?

Remove (\frac{30\pi}{3}=10\pi) from (\frac{31\pi}{3}) to get (\frac{\pi}{3}). In exams, remove the nearest multiple of (2\pi).

Which subject and chapter does this question cover?

This is a Class 12 Mathematics question. Chapter: Trigonometric Functions. Topic: Angles.

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