Vidyalelo
Aptitude · Q287

Trigonometry

Competitive Exams · Aptitude · question 287

Q287

What is the value of cosec(65° + θ) - sec(25° - θ) + tan220° - cosec270°?

A.
-1
Answer
B.
0
C.
1
D.
2

Answer: Option A

Solution

Answer: Option A
Solution:
cosec(65° + θ) - sec(25° - θ) + tan220° - cosec270°
= sec(25° - θ) - sec(25° - θ) + tan220° - sec220°
= tan220° - sec220°
= -1