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Expand the integral $\int_{1}^{2}\left(x^3+3\right)dx$ into $2$ integrals using the sum rule for integrals, to then solve each integral separately
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$\int_{1}^{2} x^3dx+\int_{1}^{2}3dx$
Learn how to solve definite integrals problems step by step online. Integrate the function x^3+3 from 1 to 2. Expand the integral \int_{1}^{2}\left(x^3+3\right)dx into 2 integrals using the sum rule for integrals, to then solve each integral separately. The integral \int_{1}^{2} x^3dx results in: \frac{15}{4}. The integral \int_{1}^{2}3dx results in: 3. Gather the results of all integrals.