`(tan 2x)/(1+ sec 2x) = tan x`

sec 2x - tan 2x=

log (sec 2x +tan 2 x)

∫tan^(-1) (sec x + tan x) dx

sec ^(2) 2x =1-tan 2x

sec ^(2) 2x =1-tan 2x

(sec x sec y + tan x tan y) ^ (2) - (sec x tan y + tan x sec y) ^ (2) = 1 Prove it

Is (sec x + tan x + 1)(sec x - tan x - 1) - 2tan x = 0 an identity.

Differentiate the following functions with respect to x(2x+3)/(x^(2)-5) (ii) (x+3)/(x^(2)+1) (iii) (1+tan x)/(1-tan x) (iv) (sec x+tan x)/(sec x-tan x)

What is the simplified value of [ ((sec^(3)x - tan^(3)x ))/((sec x - tan x ))]-2 tan^(2)x - sec x tan x ?