Math, asked by shalu7384, 1 year ago

find the general solution of 2tanx - cotx + 1=0

Answers

Answered by khushisingh9026
0
2tan x - cot x + 1 = 0

2tan x - 1/tan x + 1 = 0

2tan2x - 1 + tan x = 0

2tan2x + tan x - 1 = 0

2tan2x + 2tan x - tan x - 1 = 0

2tan x(tan x + 1) - 1 (tan x + 1) = 0

(tan x + 1)(2tan x - 1) = 0

tan x + 1 = 0 or 2tan x - 1 = 0

tan x = -1 or tan x = 1/2

x = 3π/4, 7π/4 or x = 3.6052, 0.4636
I think it is the right answer.
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