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darkigloo

  • one year ago

Did I do this problem right? (calculus-area of a region)

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  1. darkigloo
    • one year ago
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    the intersection points on the graph are (-2,1) and (2,9)

  2. darkigloo
    • one year ago
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    i did: \[\int\limits_{-2}^{9} (x^2+2x+1-(2x+5))dx \] and I got 605/3. But now I'm starting to think I should have switched the functions. like:\[\int\limits_{-2}^{9} (2x+5)-(x^2+2x+1))dx\]

  3. myininaya
    • one year ago
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    how did you get those pretty integer intersections? how did that one function magically appear?

  4. darkigloo
    • one year ago
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    there's a picture of the two graphs and the intersections

  5. darkigloo
    • one year ago
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    oh wait...i made a mistake. hold on.

  6. myininaya
    • one year ago
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    I'm suppose to ignore that one function?

  7. darkigloo
    • one year ago
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    \[f(x)=x^2+2x+1 \] \[g(x)= 2x+5\]

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spraguer (Moderator)
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