SSC CGL 2020 PYQ — Question 68

SSC CGL - 5th March 2020 Shift 2 • Quantitative Aptitude • Q68

What is the value of (cosec(78o + θ) - sec(12o - θ) - tan(67o + θ) + cot(23o - θ))/(tan 13o tan 37o tan 45o tan 53o tan77o)

Show answer & explanation

Correct answer: B

Explanation

The correct answer is option 2 i.e 0

Explanation:

(cosec(78o + θ) - sec(12o - θ) - tan(67o + θ) + cot(23o - θ))/(tan

13o tan37o tan45o tan53o tan77o)

(cosec(90o - (12o - θ)) - sec(12o - θ) - tan(90o - (23o - θ)) + \cot(23o - θ))/(tan

13o tan37o tan45o tan53o   tan77o)

(sec(12o - θ) - sec(12o - θ) - cot(23o - θ) + cot(23o - θ))/(tan

13o tan37o tan45o tan53o tan77o)

(0)/(tan 13o tan37o tan45o tan53o tan77o) = 0