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    Lissa15's Avatar
    Lissa15 Posts: 6, Reputation: 1
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    #1

    Jan 9, 2013, 03:39 AM
    secondary 3 math chapter integration
    integrate sin 2 (3x), where the 2 in the question is a square
    ebaines's Avatar
    ebaines Posts: 12,131, Reputation: 1307
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    #2

    Jan 9, 2013, 10:35 AM
    Hint: if you think about the identity , you can rearrange to get . Now you should be able to integrate after substuituting 3x for w.
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