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Class 12 Mathematics Trigonometric Functions AnglesExpertLevel 67

What are the principal angle and quadrant of (1245^\circ)?

Answer and explanation

Correct answer: (165^\circ), second quadrant

(1245^\circ-1080^\circ=165^\circ), so the angle lies in the second quadrant. In exams, first subtract multiples of (360^\circ).

Tags

trigonometric-functionsanglesprincipal-angleexpert

Frequently asked questions

What is the correct answer to this question?

(165^\circ), second quadrant

Why is this the correct answer?

(1245^\circ-1080^\circ=165^\circ), so the angle lies in the second quadrant. In exams, first subtract multiples of (360^\circ).

Which subject and chapter does this question cover?

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

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