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    hines57's Avatar
    hines57 Posts: 9, Reputation: 1
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    #1

    Dec 13, 2011, 09:51 PM
    verifying trig identities can someone help me with this please
    (1-cosx)/(1 cosx)=csc^2x-2cscxcotx cot^2x
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    Unknown008 Posts: 8,076, Reputation: 723
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    #2

    Dec 14, 2011, 04:05 AM
    Multiply the left hand side by a fraction which is equal to 1 and which makes it so that the denominator when you multiply it with (1-cosx)/(1+cosx) gives the difference of two squares in the denominator.
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