" (2) If "f((2tan x)/(1+tan^(2)x))=((1+cos2x)(sec^(2)x+2tan x))/(2)" find the domain and Range of "f(x)

f((2tan x)/(1+tan^(2)x))=((cos2x+1)(sec^(2)x+2tan x))/(2)

f((2tan x)/(1+tan^(2)x))=((cos2x+1)(sec^(2)x+tan x))/(2) then f(x)=

If quad (2tan x)/(1+tan^(2)x))=((cos2x+1)(sec^(2)x+2tan x))/(2) then domain and range of y=f(x) are given by

If f((2tanx)/(1+tan^2x))=((cos2x+1)(sec^2x+2tanx))/(2) then f(4) =

f((2tan x)/(1+tan^(2)x))=((cos2x+1)(sec^(2)x+2tan x))/(2) then f((1)/(4))=

Prove that (sin x)/(1+cos x)=tan (x/2) Find the domain and range of f(x)=cos 2 x .

If quad (2tan x)/(1+tan^(2)x))=((cos2x+1)(sec^(2)+2tan x))/(2) then f(4)=(i)11 (ii) 3(iii)0(iii)0

if: f(x)=(sin x)/(sqrt(1+tan^(2)x))-(cos x)/(sqrt(1+cot^(2)x)), then find the range of f(x)

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

sec^-1((1+tan ^2x)/(1-tan ^2 x))