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    CHITHRAP Posts: 1, Reputation: 1
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    #1

    Oct 2, 2010, 08:00 AM
    how to prove (secA tanA-1)/(tanA-secA 1)=(1 sinA)/cosA
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    Unknown008 Posts: 8,076, Reputation: 723
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    #2

    Oct 2, 2010, 08:10 AM

    I think that there are symbols missing (must be due to the version of the site you are using... yes there are several versions)

    Could you try to spell out the problem?

    And for the problem, try converting everything to cos and sin only, 'rationalise' and take away the ratios which cancel out. It should work out easily.
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