SSC CHSL 2020 PYQ — Question 59

SSC CHSL - 14th October 2020 - Shift 3 • Quantitative Aptitude • Q59

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

Show answer & explanation

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