Respuesta :

The question is given by:

[tex]\tan x+1=0[/tex][tex]\lbrack0.2\pi)[/tex]

The solution is given by:

[tex]\tan x=-1[/tex]

Now this value is possible only if

[tex]x=\frac{3\pi}{4},\frac{7\pi}{4}[/tex]

So the answer is option D

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