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    brikelly08's Avatar
    brikelly08 Posts: 1, Reputation: 1
    New Member

    Jun 16, 2009, 07:31 PM
    Trig proofs
    Trig proofs
    how do you solve:

    tanx + cotx = secxcscx
    Perito's Avatar
    Perito Posts: 3,139, Reputation: 150
    Ultra Member

    Jun 16, 2009, 07:57 PM

    Useful identities (memorize them)






    So, your problem is:

    Take the left hand side and find the common denominator. Use identity #5, above, and you'll find that the two sides are equal, which is what you want to prove.

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