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msingh

if x= a tan^2 theta when x= 0, then theta=? and when x= a, then theta=?

  • one year ago
  • one year ago

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  1. hartnn
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    when x= 0 \(0= a \tan^2 \theta \\ 0=\tan \theta\) for what value of theta is tan theta =0 ???

    • one year ago
  2. msingh
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    it means when x= 0, then theta=0

    • one year ago
  3. hartnn
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    correct :) when x=a \(a= a \tan^2 \theta \\ 1=\tan \theta\) for what value of theta is tan theta =1 ???

    • one year ago
  4. msingh
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    pi/4

    • one year ago
  5. hartnn
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    yes, pi/4 is correct. is this problem related to integration ?

    • one year ago
  6. msingh
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    yup

    • one year ago
  7. hartnn
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    oh, then ok. otherwise, we have multiple values of theta when tan theta =0 or 1, but for integration purpose, what we did is sufficient.

    • one year ago
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