Calculus: Early Transcendentals
Calculus: Early Transcendentals
8th Edition
ISBN: 9781285741550
Author: James Stewart
Publisher: Cengage Learning
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**Problem 21: Volume of a Solid Using Double Integrals**

**Objective:** 
Calculate the volume of the solid bounded above by the surface defined by the equation \( z = xye^{xy^2} \) and below by a rectangular region in the xy-plane.

**Given Parameters:**
- Surface function: \( z = xye^{xy^2} \)
- Rectangular region \( R \): 
  - \( 0 \leq x \leq 2 \)
  - \( 0 \leq y \leq 1 \)

**Instructions:**
To find the volume of the solid, set up and evaluate a double integral over the region \( R \). The integral will be of the form:
\[
\int_0^2 \int_0^1 xye^{xy^2} \, dy \, dx
\]

**Approach:**
1. **Set Up the Double Integral:** 
   - Identify the limits of integration for \( x \) and \( y \) based on the given rectangle \( R \).
   - Write out the integral for \( z = xye^{xy^2} \) over this region.

2. **Evaluate the Integral:**
   - Compute the inner integral with respect to \( y \) while treating \( x \) as a constant.
   - Compute the resulting outer integral with respect to \( x \).

This process will yield the volume of the solid within the specified boundaries. Make use of integration techniques such as substitution or integration by parts if necessary.
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Transcribed Image Text:**Problem 21: Volume of a Solid Using Double Integrals** **Objective:** Calculate the volume of the solid bounded above by the surface defined by the equation \( z = xye^{xy^2} \) and below by a rectangular region in the xy-plane. **Given Parameters:** - Surface function: \( z = xye^{xy^2} \) - Rectangular region \( R \): - \( 0 \leq x \leq 2 \) - \( 0 \leq y \leq 1 \) **Instructions:** To find the volume of the solid, set up and evaluate a double integral over the region \( R \). The integral will be of the form: \[ \int_0^2 \int_0^1 xye^{xy^2} \, dy \, dx \] **Approach:** 1. **Set Up the Double Integral:** - Identify the limits of integration for \( x \) and \( y \) based on the given rectangle \( R \). - Write out the integral for \( z = xye^{xy^2} \) over this region. 2. **Evaluate the Integral:** - Compute the inner integral with respect to \( y \) while treating \( x \) as a constant. - Compute the resulting outer integral with respect to \( x \). This process will yield the volume of the solid within the specified boundaries. Make use of integration techniques such as substitution or integration by parts if necessary.
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