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Thread: Trig Prove

  1. May 9th 2012, 07:59 PM #1
    srirahulan
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    Lightbulb Trig Prove

    (sec8A - 1) /(sec4A - 1) =tan 8A / tan 4A prove this.
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  2. May 9th 2012, 08:14 PM #2
    princeps
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    Re: Trig Prove

    Statement is false . Counterexample A=30^{\circ}
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