If `x+y+z=pi,,tan x tanz=2and tanytanz=18,then tan^(2)z=`

If quad y + z = pi, tan x tan y = 2 and tan x + tan y + tan z = 6 then z =

If x+y=pi//4 and tan x+tan y=1 , then (n in Z)

If x,y,z are variables and 3tan x+4tany+5tanz=20, then the minimum value of tan^(2)x+tan^(2)y+tan^(2)z, is

If cos x=tan y,cot y=tan z and cot z=tan x, then sin x=

If (tan x)/(2)=(tan y)/(3)=(tan z)/(5),x+y+z=pi and tan^(2)x+tan^(2)y+tan^(2)z=(38)/(K) then K=