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Math Help - [SOLVED] Identities

  1. #1
    Junior Member
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    [SOLVED] Identities

    Show that (1-cosx)/sinx = tan(x/2)

    What identity to use?
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  2. #2
    MHF Contributor Calculus26's Avatar
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    start with
    tan(x/2) =sin(x/2)/cos(x/2)

    Use your half angle identities for siN(x/2) and cos(x/2)
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