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Trig Substitution Problem w/ tan substitution

  1. Nov 19, 2016 #1
    1. The problem statement, all variables and given/known data

    Under #3

    2. Relevant equations

    Trig identities

    3. The attempt at a solution

    The picture attached is my attempt. The square in the upper upper left is the problem and the one in the lower right is my solution. I'm seeing that I'm getting the wrong answer, but not how.

    1479619739190-1775315430.jpg
     
  2. jcsd
  3. Nov 20, 2016 #2

    ehild

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    Gold Member

    You should type in the problem at least.
    The formula for csc (theta) is wrong, You miss a square root.
     
  4. Nov 20, 2016 #3
    I miss a square root? Where does a square root come into play? None of the sides of the triangle should have a square root in them.
     
  5. Nov 20, 2016 #4

    ehild

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    Really? So the dimension of the sides of a right triangle is length, but that of the hypotenuse is length-squared?
    Recall Pythagoras' Theorem.
     
  6. Nov 20, 2016 #5
    Haha sorry I did this while really tired... my bad.
     
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