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Posted by on Sunday, December 7, 2008 at 3:43pm.

prove the identity: (tan theta)/(csc theta) + 1/(sec theta)= sec theta

  • pre-calc - , Sunday, December 7, 2008 at 4:55pm

    I will use x instead of theta for simpler typing
    LS = sinx/cosx(sinx) + cosx
    = (sin^2 x + sin^2 x)/cos x after I found a common denomiator of cos x
    = 1/cos x
    = sec x
    = RS

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