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OpenStudy (briensmarandache):
sin(2x)=sin(x), 0 =< X < 2pi Find all solutions? can some onw walk me through this?
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myininaya (myininaya):
use sin(2x)=2sin(x)cos(x)
myininaya (myininaya):
solve 2sin(x)cos(x)-sin(x)=0 by factoring first the left hand side
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