Question
Find the volume of the solid generated by revolving about the $x$ -axis the area under the curve $y=3 e^{-x}$ in the first quadrant.
Step 1
Step 1: The volume of the solid generated by revolving a curve $y=f(x)$ from $x=a$ to $x=b$ about the x-axis is given by the formula: \[V=\pi \int_{a}^{b} [f(x)]^{2} dx\] Show more…
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