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Class 12 Mathematics Trigonometric Functions AnglesExpertLevel 69

If (A=20^\circ 15') and (B=12^\circ 45'), what is (2A-B)?

Answer and explanation

Correct answer: (27^\circ 45')

(2A=40^\circ 30') and (40^\circ 30'-12^\circ 45'=27^\circ 45'). In exams, remember borrowing while subtracting minutes.

Tags

trigonometric-functionsanglesclass-11expert

Frequently asked questions

What is the correct answer to this question?

(27^\circ 45')

Why is this the correct answer?

(2A=40^\circ 30') and (40^\circ 30'-12^\circ 45'=27^\circ 45'). In exams, remember borrowing while subtracting minutes.

Which subject and chapter does this question cover?

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

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