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msingh

  • 2 years ago

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

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

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

  3. hartnn
    • 2 years ago
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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 ???

  4. msingh
    • 2 years ago
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    pi/4

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

  6. msingh
    • 2 years ago
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    yup

  7. hartnn
    • 2 years ago
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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.

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