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    Viictoriia94 Posts: 5, Reputation: 1
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    #1

    Apr 19, 2012, 04:48 PM
    Verify the identity
    (2sinθ)/(cos2θ-sinθ) (2cos^(2)θ)/(cos2θ)-(sin2θ 2)/(cos2x)=0
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    Viictoriia94 Posts: 5, Reputation: 1
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    #2

    Apr 19, 2012, 04:50 PM
    The things that look like an I with a comma are supposed to be x's
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    Viictoriia94 Posts: 5, Reputation: 1
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    #3

    Apr 19, 2012, 04:57 PM
    (2sin(x))/(cos(x)-sin(x))+(2cos^(2)x)/(cos(2x))-(sin(2x+2))/(cos(2x))=0
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