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  1. nkbxwb
    • 3 years ago
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    Maybe try a trig substitution?

  2. hipster
    • 3 years ago
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    Hmm..do you have an answer by any chance?

  3. jabberwock
    • 3 years ago
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    Yucky. Calculator spat out an answer of \[9\pi+30\] If you tried to do this by hand, you'd have to do some icky inverse trig integrals and some stuff with uv substitution.

  4. amingad
    • 3 years ago
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    no @jabberwork u cannot do uv in integration put x = 6 cos teta now do substitution method take dx and change into d teta change limits it is over

  5. amingad
    • 3 years ago
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    ur answer will be 58.274

  6. jabberwock
    • 3 years ago
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    Ah, good call.

  7. hipster
    • 3 years ago
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    Wow! well done amingad!! :) Thanks a lot you saved me there

  8. hipster
    • 3 years ago
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    Thank you for attempting the problem, jabberwock. :)

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