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cot^2x – cosec^2x = __________(a) 1(b) -1(c) sin^2x(d) cos^2xI have been asked this question in an online quiz.I'm obligated to ask this question of Trigonometric Functions in section Trigonometric Functions of Mathematics – Class 11

Answer»

The correct choice is (B) -1

Easiest EXPLANATION: We know, cosec^2x – cot^2x = 1

So, cot^2x – cosec^2x = -1.



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