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    Thrimani's Avatar
    Thrimani Posts: 2, Reputation: 1
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    #1

    Mar 1, 2011, 08:32 AM
    prove this ;- (sine A/2)/(cosA/2 1) = tanA/2?
    Thrimani's Avatar
    Thrimani Posts: 2, Reputation: 1
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    #2

    Mar 1, 2011, 08:39 AM
    prove this ;- (sine A/2)/(cosA/2 +1) = tanA/2?
    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
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    #3

    Mar 1, 2011, 09:31 AM

    Um... do you realise that:



    Hence, this is not a valid proof.
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