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The integral of the exponential function is given by the following formula $\displaystyle \int a^xdx=\frac{a^x}{\ln(a)}$, where $a > 0$ and $a \neq 1$
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$\left[e^x\right]_{-1}^{2}$
Learn how to solve definite integrals problems step by step online. Integrate the function e^x from -1 to 2. The integral of the exponential function is given by the following formula \displaystyle \int a^xdx=\frac{a^x}{\ln(a)}, where a > 0 and a \neq 1. Evaluate the definite integral. Simplify the expression inside the integral.