JenMarie
JenMarie
18-08-2016
Mathematics
contestada
cotx(tanx-1)=0
solve over [0, 2pie)
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Аноним
Аноним
18-08-2016
[tex]cot x (tan x - 1) = 0 [/tex]
[tex]cot x tan x - cot x = 0 [/tex]
[tex]= cot x = 1/tan x = cot x tan x = 1 [/tex]
[tex]1 - cot x = 0 [/tex]
[tex]1 = cot x [/tex]
[tex]x = arccot 1 [/tex]
= [0,2π)
x = π/4 and x=5π/4
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