Mark the correct alternative in the following: If x is an acute angle and , then the value of is

Question

Philoid · Accepted Answer

Given x is an acute angle and value of tan x =1/√7.

⇒ We know tan²x + 1 = sec²x

⇒ Also, cot²x+1 = cosec²x

⇒ cot² x=7

⇒ cot²x+1 = 7+1

=8

⇒ cosec²x = 8

∴

⇒