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baldymcgee6

  • 3 years ago

FTC problem... link posted.

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  1. baldymcgee6
    • 3 years ago
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    http://screencast.com/t/7miUoxLU

  2. dustinnguyen2014
    • 3 years ago
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    its -4, but let me try to explain why

  3. dustinnguyen2014
    • 3 years ago
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    ok so from 2 to 8, the area under the curve is 5. from 5 to 8, the area under the curve is 9. we want to find the area under the curve from 2 to 5. think about that for a sec

  4. baldymcgee6
    • 3 years ago
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    haha, i know what all of the definite integrals mean, there must be some negative area there.

  5. dustinnguyen2014
    • 3 years ago
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    oh yeah, negative areas are possible. it just means its under the x axis

  6. baldymcgee6
    • 3 years ago
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    but how do you know that it is -4?

  7. dustinnguyen2014
    • 3 years ago
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    (area from 2 through 8) - (area from 5 through 8) = area from 2 through 5.

  8. baldymcgee6
    • 3 years ago
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    ahhh of course :/

  9. baldymcgee6
    • 3 years ago
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    thanks so much, makes sense now.

  10. dustinnguyen2014
    • 3 years ago
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    haha yeah, you have to think of it conceptually. just taking areas out of each other

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