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Class 12 Mathematics Trigonometric Functions AnglesExpertLevel 67

What is the principal angle between (0) and (2\pi) for (-\frac{101\pi}{18})?

Answer and explanation

Correct answer: (\frac{7\pi}{18})

(-\frac{101\pi}{18}+6\pi=\frac{7\pi}{18}). In exams, writing (6\pi) as (\frac{108\pi}{18}) makes addition easy.

Tags

trigonometric-functionsanglesprincipal-angleexpert

Frequently asked questions

What is the correct answer to this question?

(\frac{7\pi}{18})

Why is this the correct answer?

(-\frac{101\pi}{18}+6\pi=\frac{7\pi}{18}). In exams, writing (6\pi) as (\frac{108\pi}{18}) makes addition easy.

Which subject and chapter does this question cover?

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

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