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OpenStudy (anonymous):
13 sin x + 6 = sin x i got: 7pi/6 +nPi and 11pi/6 +nPi but it says its wrong
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OpenStudy (dumbcow):
oh it should be "+2nPi"
OpenStudy (dumbcow):
if you only add 1 pi to 7pi/6 you end up at pi/6 which gives a positive value for sin not the correct value of -1/2
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