7. Evaluate the double integral S Sr (x sin(y) – y sin(x)) dA over the rectangular region R= {(x, y) : 0

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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**Problem Statement:**

Evaluate the double integral 

\[
\iint_R (x \sin(y) - y \sin(x)) \, dA
\]

over the rectangular region \( R = \{(x, y) : 0 \leq x \leq \pi/2, 0 \leq y \leq \pi/3\} \).

**Description:**

This problem involves calculating a double integral of the function \( f(x, y) = x \sin(y) - y \sin(x) \) over a specified rectangular region in the xy-plane. The limits for the variable \( x \) range from \( 0 \) to \( \pi/2 \), and for the variable \( y \), they range from \( 0 \) to \( \pi/3 \).

The integral is evaluated with respect to the area \( dA \), representing a small element of area in the rectangular region \( R \). The goal is to find the total accumulation of the function \( f(x, y) \) over this region.

**Graphical Explanation:**

There are no graphs or diagrams in the provided image. However, if a diagram were included, it would typically show a rectangle on the xy-plane bounded by \( x = 0 \), \( x = \pi/2 \), \( y = 0 \), and \( y = \pi/3 \). The function \( f(x, y) \) might also be visualized as a surface over this region, illustrating areas where the function is positive or negative.
Transcribed Image Text:**Problem Statement:** Evaluate the double integral \[ \iint_R (x \sin(y) - y \sin(x)) \, dA \] over the rectangular region \( R = \{(x, y) : 0 \leq x \leq \pi/2, 0 \leq y \leq \pi/3\} \). **Description:** This problem involves calculating a double integral of the function \( f(x, y) = x \sin(y) - y \sin(x) \) over a specified rectangular region in the xy-plane. The limits for the variable \( x \) range from \( 0 \) to \( \pi/2 \), and for the variable \( y \), they range from \( 0 \) to \( \pi/3 \). The integral is evaluated with respect to the area \( dA \), representing a small element of area in the rectangular region \( R \). The goal is to find the total accumulation of the function \( f(x, y) \) over this region. **Graphical Explanation:** There are no graphs or diagrams in the provided image. However, if a diagram were included, it would typically show a rectangle on the xy-plane bounded by \( x = 0 \), \( x = \pi/2 \), \( y = 0 \), and \( y = \pi/3 \). The function \( f(x, y) \) might also be visualized as a surface over this region, illustrating areas where the function is positive or negative.
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