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Trigonometric Equation Solutions 3

Find all values of $ x, $ $ 0 \le x \le 2 \pi, $ which satisfy \[\sin^2 x + \cos x + 1 = 0.\]Enter all the solutions, separated by commas.

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2
3
+
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-
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9
$\frac{a}{b}$
.
0
=
%

$a^n$
$a^{\circ}$
$a_n$
$\sqrt{}$
$\sqrt[n]{}$
$\pi$
$\ln{}$
$\log$
$\theta$
$\sin{}$
$\cos{}$
$\tan{}$

$($
$)$
$[$
$]$
$\cap$
$\cup$
$,$
$\infty$