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Math Help - [SOLVED] Trig Indentity Limits

  1. #1
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    [SOLVED] Trig Indentity Limits

    Hi I don't get the correct answer for these 2. Could someone please show me.

    Lim as x approach 0, (1-cosx)/(2x^2)..i get 0

    Lim as x approach pi/2, (cosx)/((pi/2)-x)..i get -1
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  2. #2
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    Quote Originally Posted by Neverquit View Post
    Hi I don't get the correct answer for these 2. Could someone please show me.

    Lim as x approach 0, (1-cosx)/(2x^2)..i get 0

    Lim as x approach pi/2, (cosx)/((pi/2)-x)..i get -1
    Use L'Hopital's rule. You'll have to use it twice on the first one.
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