Integrate (int_{-1} ^{2} (2x^2 + x) mathrm {d} x)
Integrate (int_{-1} ^{2} (2x^2 + x) mathrm {d} x) A. (4frac{1}{2}) B. (3frac{1}{2}) C. (7frac{1}{2}) D. (5frac{1}{4}) Correct…
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