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SSC CHSL 2019 PYQ — Question 53

SSC CHSL - 2nd July 2019 - Shift 2 • Quantitative Aptitude • Q53

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If sinx + cosecx = 2, then sin17x + cosec18x is equal to:

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Correct answer: C

Explanation

The correct answer is option 3 i.e 2

⇒ sinx + cosecx = 2

⇒ sinx + 1 / sinx = 2

This will be satisfy when x = 90°

⇒ (1)17 + (1)18 = 1 + 1 = 2