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Which trigonometric ratios are positive in the second quadrant?

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in Mathematics - Class 10 by (506k points)
Which trigonometric ratios are positive in the second quadrant?

(a) Cosec, Sin

(b) Sec, Tan

(c) Sin, Cot

(d) Tan, Cot

This 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

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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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