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Silly question but uhh

  1. Oct 20, 2006 #1
    How can I calculate cos ^2 (53)?
  2. jcsd
  3. Oct 20, 2006 #2

    Doc Al

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    Staff: Mentor

    What don't you understand? I assume you have a calculator and you realize that cos ^2 (53) = [cos(53)]squared.
  4. Oct 20, 2006 #3


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    Homework Helper

    Take the cos of the angle, [itex]\cos[/itex], then square the value obtained, [itex]x^2[/itex].
  5. Oct 20, 2006 #4
    oh okay. Thanks.
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