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Which trigonometric ratios are positive in the second quadrant?(a) Cosec, Sin(b) Sec, Tan(c) Sin, Cot(d) Tan, CotThis question was addressed to me during an online interview.I'd like to ask this question from Trigonometric Ratios of Complementary Angles in portion Trigonometry of Mathematics – Class 10

Answer»

Right choice is (a) Cosec, Sin

The EXPLANATION is: A plane is DIVIDED into four infinite quadrants. The TRIGONOMETRIC ratios that are positive in the SECOND quadrant are sine, cosecant and the rest of all trigonometric ratios are NEGATIVE in this quadrant.



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