Calculus

Find the exact value of cot(arcsin(12/13))
and
cos(arcsin(1.7/2))

I know that cos(arcsin(x))=sin(arccos(x))=sqrt(1-x^2). I'm having more difficulty with the first one. Please help! Thank you

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asked by Emily
  1. I got the second answer. Still confused on the first one.

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    posted by Emily
  2. draw your triangle You have the opposite leg=12 and the hypotenuse=13

    So, the adjacent leg is √(169-144) = 5

    cot(x) = 5/12

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    posted by Steve
  3. 300

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    posted by Sarah

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