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Math Help - find the region of R

  1. #1
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    find the region of R

    R is the region that lies between the curve y=\frac{1}{x^2+4x+5}and the x-axis
    from x = -3 to x = -1. Find the area of R
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  2. #2
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    \frac{1}{{x^2  + 4x + 5}} = \frac{1}{{\left( {x + 2} \right)^2  + 1}}
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