Answer
$11\pi$/4,$19\pi$/4,-$5\pi$/4,-$13\pi$/4,
Work Step by Step
$3\pi$/4+$2\pi$=$11\pi$/4;
$11\pi$/4+$2\pi$=$19\pi$/4;
$3\pi$/4-$2\pi$=-$5\pi$/4;
-$5\pi$/4-$2\pi$=-$13\pi$/4
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