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Is there anything wrong with my solution?

  1. Apr 23, 2010 #1
    1. The problem statement, all variables and given/known data

    Cos X *[Cosec (270+X)][tan X] = .............

    2. Relevant equations

    Cosec (270+X) = - sec X
    Cos X * sec X = 1

    3. The attempt at a solution

    Cos X * -Sec X * tan X = - tan X

    then the solution is
    Cos X *[Cosec (270+X)][tan X] = - tan X

    Is it right?Can it has another solution??

  2. jcsd
  3. Apr 23, 2010 #2


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    Homework Helper

    It is right.

  4. Apr 24, 2010 #3
    Great Thanks
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