Question
Evaluate each double integral over the region $R$ by comerting it to an iterated integral.$$\iint_{R}\left(x^{2}+x y\right) d A ; R=\{(x, y): 1 \leq x \leq 2,-1 \leq y \leq 1\}$$
Step 1
The region $R$ is a rectangle in the $xy$-plane, so we can integrate first with respect to $y$ and then with respect to $x$. The iterated integral is $$\int_{1}^{2} \int_{-1}^{1} \left(x^{2}+x y\right) dy dx.$$ Show more…
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