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  1. Top | #1

    Sep 2013
    17034
    0.28
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    1,349
    Thanked: 1595

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    $Q34)2cosx=\pi ^{x}+\pi ^{-x}$

  2. Top | #2

    Sep 2013
    17034
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    Thanked: 1595

    :

    $35)y^{2}+3=5\sqrt{xz}.....(1)$

    $z^{2}-16=3xy\sqrt{9-25xz}......(2)$

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