celiabarajas42
celiabarajas42
31-03-2017
Mathematics
contestada
Tanx-cotx=0 solve in radians
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Joplinice
Joplinice
31-03-2017
tan x + 1 / tan x = 2
tan^2 x + 1 = 2 tan x
tan^2 x - 2 tan x + 1 = 0
( tan x - 1 )^2 = 0
tan x = 1
x = π/4 , 5π/4
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