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Mathematics 8 Online
OpenStudy (anonymous):

solve sin3x=0

OpenStudy (compassionate):

The easiest thing to do is to first replace 3x by y sin y = 0 The sine function is zero when y = 0 and y = pi Since y = 3x 3x = 0 or 3x = pi or x = 0 or x = pi/3 Since pi/3 is within the stated range, that is the answer

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