'Use Stokes' Theorem to compute | 1 F. dr where C is the curve where the cylinder a? + y? = 1 intersects the plane z = 1, given that curl F = (xz, –yz, r² + y²).
'Use Stokes' Theorem to compute | 1 F. dr where C is the curve where the cylinder a? + y? = 1 intersects the plane z = 1, given that curl F = (xz, –yz, r² + y²).
Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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### Assignment: Applying Stokes' Theorem
**Task Description:**
Use Stokes' Theorem to compute the line integral
\[ \oint_C \mathbf{F} \cdot d\mathbf{r} \]
where \(C\) is the curve formed by the intersection of the cylinder \(x^2 + y^2 = 1\) and the plane \(z = 1\). You are given that the curl of \(\mathbf{F}\) is:
\[ \text{curl} \, \mathbf{F} = \langle xz, -yz, x^2 + y^2 \rangle. \]
**Background:**
Stokes' Theorem relates a surface integral of the curl of a vector field over a surface \(\Sigma\) to the line integral of the vector field over its boundary curve \(C\):
\[ \oint_C \mathbf{F} \cdot d\mathbf{r} = \iint_{\Sigma} (\nabla \times \mathbf{F}) \cdot d\mathbf{S} \]
Here, \(\nabla \times \mathbf{F}\) denotes the curl of \(\mathbf{F}\), and \(d\mathbf{S}\) is the vector area element of the surface \(\Sigma\).
**Instructions:**
1. Recognize the curve \(C\) formed by the intersection of the cylinder \(x^2 + y^2 = 1\) and the plane \(z = 1\).
2. Identify the surface \(\Sigma\) with boundary \(C\).
3. Compute the surface integral using the given curl of \(\mathbf{F}\).
**Key Points:**
- The curve \(C\) is a circle of radius 1 in the plane \(z = 1\).
- The surface \(\Sigma\) can be taken as the planar disk \(x^2 + y^2 \leq 1\) at \(z = 1\).
Below is the detailed solution to guide you through each step.
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Transcribed Image Text:---
### Assignment: Applying Stokes' Theorem
**Task Description:**
Use Stokes' Theorem to compute the line integral
\[ \oint_C \mathbf{F} \cdot d\mathbf{r} \]
where \(C\) is the curve formed by the intersection of the cylinder \(x^2 + y^2 = 1\) and the plane \(z = 1\). You are given that the curl of \(\mathbf{F}\) is:
\[ \text{curl} \, \mathbf{F} = \langle xz, -yz, x^2 + y^2 \rangle. \]
**Background:**
Stokes' Theorem relates a surface integral of the curl of a vector field over a surface \(\Sigma\) to the line integral of the vector field over its boundary curve \(C\):
\[ \oint_C \mathbf{F} \cdot d\mathbf{r} = \iint_{\Sigma} (\nabla \times \mathbf{F}) \cdot d\mathbf{S} \]
Here, \(\nabla \times \mathbf{F}\) denotes the curl of \(\mathbf{F}\), and \(d\mathbf{S}\) is the vector area element of the surface \(\Sigma\).
**Instructions:**
1. Recognize the curve \(C\) formed by the intersection of the cylinder \(x^2 + y^2 = 1\) and the plane \(z = 1\).
2. Identify the surface \(\Sigma\) with boundary \(C\).
3. Compute the surface integral using the given curl of \(\mathbf{F}\).
**Key Points:**
- The curve \(C\) is a circle of radius 1 in the plane \(z = 1\).
- The surface \(\Sigma\) can be taken as the planar disk \(x^2 + y^2 \leq 1\) at \(z = 1\).
Below is the detailed solution to guide you through each step.
---
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