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Math Help - More Trig Equations

  1. #1
    Member
    Joined
    Oct 2008
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    157

    More Trig Equations

    I have done some past exam questions on here: Could you please check if I've done them correctly or where I've gone wrong?

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  2. #2
    Member
    Joined
    Jan 2009
    Posts
    94
    A minor mistake in tan(3x).
    You divided by 2 mistakenly.
    Otherwise looks good to me.

    -O hopes.
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