If the expression `(sin(x/2)+cos(x/2)-i tan(x/2))/(1+2isin(x/2))` is real, the find the set of al possible values of x

If the expression ([sin((x)/(2))+cos((x)/(2))-i tan(x)])/([1+2i sin((x)/(2))]) is real,then the set of all possible values of x is.......

Simplify tan^(-1)((cos(x/2)+sin(x/2))/(cos(x/2)-sin(x/2)))

find the value of expression (sin2x)/(1+cos2x) is:

If a.3^(tan x)+a*3^(-tan x)-2=0 has real solutions,x!=(pi)/(2),0<=x<=pi, then find the set of all possible values of parameter 'a'.

(sin2x)/(1+cos2x)=tan x

If (sin^(2)x-2cos^(2)x+1)/(sin^(2)x+2cos^(2)x-1)=4 , then the value of 2 tan^(2)x is

Find sin((x)/(2)),cos((x)/(2)) and tan((x)/(2)) in each of the following if cos x=-(1)/(3)

sin x=(a^(2)-b^(2))/(a^(2)+b^(2)) then find the value of tan x,sec x and cos ecx

Find the values of sin(x/2),cos(x/2) and tan(x/2)" if "tan x=(5)/(12) and x lies in the third quadrant.