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Class 12 Mathematics Trigonometric Functions AnglesHardLevel 68

If the principal angle of (\theta) is (280^\circ), what is the principal angle of (-\theta)?

Answer and explanation

Correct answer: (80^\circ)

(-280^\circ+360^\circ=80^\circ). In exams, add (360^\circ) to make a negative angle positive.

Tags

trigonometry angles principal hard class11

Frequently asked questions

What is the correct answer to this question?

(80^\circ)

Why is this the correct answer?

(-280^\circ+360^\circ=80^\circ). In exams, add (360^\circ) to make a negative angle positive.

Which subject and chapter does this question cover?

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

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