For Problem 3, evaluate the integral by hand, and show your work. You might find it helpful to first convert to a different coordinate system. 3. Sr xy Vx² + y² dA, where R is the portion of the disk of radius 1 centered at the origin that lies in the first quadrant (see diagram to the right).

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Chapter2: Second-order Linear Odes
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For Problem 3, evaluate the integral by hand, and show your work. You might find it helpful to first convert to a different coordinate system.

3. \(\int_{R} xy \sqrt{x^2 + y^2} \, dA\), where \(R\) is the portion of the disk of radius 1 centered at the origin that lies in the first quadrant (see diagram to the right).

**Diagram Explanation:**

The diagram shows a shaded region representing one-quarter of a circle (a sector) with a radius of 1. This sector is situated in the first quadrant of the Cartesian coordinate system, implying positive x and y values. The curved boundary of the sector lies along the arc of a circle centered at the origin (0, 0), extending from (1, 0) on the x-axis to (0, 1) on the y-axis. The straight edges of the sector coincide with the x-axis and y-axis.
Transcribed Image Text:For Problem 3, evaluate the integral by hand, and show your work. You might find it helpful to first convert to a different coordinate system. 3. \(\int_{R} xy \sqrt{x^2 + y^2} \, dA\), where \(R\) is the portion of the disk of radius 1 centered at the origin that lies in the first quadrant (see diagram to the right). **Diagram Explanation:** The diagram shows a shaded region representing one-quarter of a circle (a sector) with a radius of 1. This sector is situated in the first quadrant of the Cartesian coordinate system, implying positive x and y values. The curved boundary of the sector lies along the arc of a circle centered at the origin (0, 0), extending from (1, 0) on the x-axis to (0, 1) on the y-axis. The straight edges of the sector coincide with the x-axis and y-axis.
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