Question

How do you verify the identity `(tan x)/(Sec x-1)=(sec x+1)/ (Tan x)`?

Answer 1

Verify the identity

Explanation:

Use trig identity: `tan^2 x = sec^2 - 1 = (sec - 1)(sec + 1)`
Therefor:

`(tan x)/(sec - 1) = (sec + 1)/(tan x)`