Consider the following integral. Sketch its region of integration in the xy-plane. (²) (a) Which graph shows the region of integration in the xy-plane?? V (b) Write the integral with the order of integration reversed: -Sa So In (2) with limits of integration A = B = C = D= (c) Evaluate the integral. dx dy dx dy= dy dx y с y D B

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
Section: Chapter Questions
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Consider the following integral. Sketch its region of integration in the xy-plane.

\[
\int_0^1 \int_{e^y}^{e} \frac{x}{\ln(x)} \, dx \, dy
\]

(a) Which graph shows the region of integration in the xy-plane?

**Graphs:**

- **Graph A:** A region under the curve \( y = 1 \) from \( x = e^y \) to \( x = e \).
- **Graph B:** A region under the curve \( y = e^{x-1} \) between \( x = 1 \) and \( x = e \).
- **Graph C:** A region under the curve \( y = \ln(x) \) from \( x = 1 \) to \( x = e \).
- **Graph D:** A region under the curve \( y = \ln(x) \) from \( x = 1 \) to \( x = e \).

(b) Write the integral with the order of integration reversed:

\[
\int_0^1 \int_{e^y}^{e} \frac{x}{\ln(x)} \, dx \, dy = \int_A^B \int_C^D \frac{x}{\ln(x)} \, dy \, dx
\]

with limits of integration
- \( A = \)
- \( B = \)
- \( C = \)
- \( D = \)

(c) Evaluate the integral.

(Note: The task involves identifying the correct graph, reversing the limits of integration, and evaluating the integral.)
Transcribed Image Text:Consider the following integral. Sketch its region of integration in the xy-plane. \[ \int_0^1 \int_{e^y}^{e} \frac{x}{\ln(x)} \, dx \, dy \] (a) Which graph shows the region of integration in the xy-plane? **Graphs:** - **Graph A:** A region under the curve \( y = 1 \) from \( x = e^y \) to \( x = e \). - **Graph B:** A region under the curve \( y = e^{x-1} \) between \( x = 1 \) and \( x = e \). - **Graph C:** A region under the curve \( y = \ln(x) \) from \( x = 1 \) to \( x = e \). - **Graph D:** A region under the curve \( y = \ln(x) \) from \( x = 1 \) to \( x = e \). (b) Write the integral with the order of integration reversed: \[ \int_0^1 \int_{e^y}^{e} \frac{x}{\ln(x)} \, dx \, dy = \int_A^B \int_C^D \frac{x}{\ln(x)} \, dy \, dx \] with limits of integration - \( A = \) - \( B = \) - \( C = \) - \( D = \) (c) Evaluate the integral. (Note: The task involves identifying the correct graph, reversing the limits of integration, and evaluating the integral.)
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