Problem. 1: Evaluate the line integral xy dæ + x²y³ dy, where C is the counterclockwise boundary curve around the triangle with vertices (0, 0), (1,0), and (1, 2), by the two following methods. Method 1: calculate the line integral directly. Let Cı be the line segment from (0, 0) to (1,0), C2 be the line segment from (1,0) to (1, 2), and C3 be the line segment from (1, 2) to (0, 0). Then xy dx + x²y° dy = 0 xy dx + æ²y³ dy = ? xy dx + x²y* dy = C3 Therefore, xy dæ + a²y° dy =

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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**Problem 1: Evaluate the line integral**

\[
\int_{C} xy \, dx + x^2y^3 \, dy,
\]

where \( C \) is the counterclockwise boundary curve around the triangle with vertices \((0, 0)\), \((1, 0)\), and \((1, 2)\), by the two following methods.

**Method 1: Calculate the line integral directly.** Let \( C_1 \) be the line segment from \((0, 0)\) to \((1, 0)\), \( C_2 \) be the line segment from \((1, 0)\) to \((1, 2)\), and \( C_3 \) be the line segment from \((1, 2)\) to \((0, 0)\). Then

\[
\int_{C_1} xy \, dx + x^2y^3 \, dy = 0
\]

\[
\int_{C_2} xy \, dx + x^2y^3 \, dy = \text{(Enter value)}
\]

\[
\int_{C_3} xy \, dx + x^2y^3 \, dy = \text{(Enter value)}
\]

Therefore,

\[
\int_{C} xy \, dx + x^2y^3 \, dy = \text{(Enter value)}
\]
Transcribed Image Text:**Problem 1: Evaluate the line integral** \[ \int_{C} xy \, dx + x^2y^3 \, dy, \] where \( C \) is the counterclockwise boundary curve around the triangle with vertices \((0, 0)\), \((1, 0)\), and \((1, 2)\), by the two following methods. **Method 1: Calculate the line integral directly.** Let \( C_1 \) be the line segment from \((0, 0)\) to \((1, 0)\), \( C_2 \) be the line segment from \((1, 0)\) to \((1, 2)\), and \( C_3 \) be the line segment from \((1, 2)\) to \((0, 0)\). Then \[ \int_{C_1} xy \, dx + x^2y^3 \, dy = 0 \] \[ \int_{C_2} xy \, dx + x^2y^3 \, dy = \text{(Enter value)} \] \[ \int_{C_3} xy \, dx + x^2y^3 \, dy = \text{(Enter value)} \] Therefore, \[ \int_{C} xy \, dx + x^2y^3 \, dy = \text{(Enter value)} \]
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