Find the general solution of each of the following equations:
2 tan x – cot x + 1 = 0
To Find: General solution.
Given: 2 tan x – cot x + 1 = 0 2tan2x – 1 + tan x = 0 2tan2x – 1 + 2tan x – tanx = 0 2tanx(tanx +1) – (1+ tanx) = 0
(2tanx-1) (1+ tanx) = 0 tan x = = or tan x = -1 = tan
Formula used: tan = tan = n , n I
x = n or x = n
So the general solution is x = nor x = n where n I