Stretch7640 Stretch7640

01-11-2017
Mathematics

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(1 point) find ∬rf(x,y)da∬rf(x,y)da where f(x,y)=xf(x,y)=x and r=[1,6]×[4,5]r=[1,6]×[4,5].

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LammettHash LammettHash

01-11-2017

[tex]\displaystyle\iint_Rf(x,y)\,\mathrm dA=\int_{y=4}^{y=5}\int_{x=1}^{x=6}x\,\mathrm dx\,\mathrm dy=\int_{x=1}^{x=6}x\,\mathrm dx=\frac{35}2[/tex]

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