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SSC CHSL 2023 PYQ — Question 20

SSC CHSL Tier II - 26 Jun 2023 - Shift 1 • Quantitative Aptitude • Q20

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If Sin A = (8/17), then what is the value of CotA + SecA?

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Correct answer: B

Explanation

The correct answer is option 2 i.e.  311203\frac1 {120}

sinA = 8/17 (perpendicular/hypotenuse)

base2 = hypotenuse2 - perpendicular2

base2 = 172 - 82 = 289 - 64 = 225

base = 15

cosA = 15/17

secA = 1/cosA = 17/15

cotA = cosA/sinA = 15/8

cotA + secA = 15/8 + 17/15 = (225 + 136)/120 = 361/120 = 311203\frac1 {120}