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Posted by on Tuesday, August 24, 2010 at 8:30am.

verify following trigonometric identities. 1/sec0tan0 = csc0 = sin0

  • Trig - , Tuesday, August 24, 2010 at 8:38am

    check your typing, your statement is not true.

  • Trig - , Tuesday, August 24, 2010 at 8:50am

    I figured you must mean

    1/(secØtanØ) - cscØ = - sinØ

    Proof:
    LS = 1/((1/cosØ)(sinØ/cosØ)) - 1/sinØ
    = cos^2 Ø/sinØ - 1/sinØ
    = (cos^ Ø - 1)sinØ
    = - sin^2 Ø/sinØ
    = =sinØ
    = RS

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