Question

cotx - tanx = ? answer​

Answer 1

Answer:

cot x – tan x = (1/tan x) – tan x

= (1 – tan2x)/tan x

Multiplying and dividing by 2,

= 2(1 – tan2x)/2 tan x

Using the formula tan 2A = 2 tan A/(1 – tan2A),

= 2/tan 2x

= 2 cot 2x

hope it helps