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Given the double integral: ย โˆซ24โˆซ4๐‘ฅโˆ’๐‘ฅ2๐‘ฅ๐‘ฆ2(๐‘ฅ2+๐‘ฆ2)3/2๐‘‘๐‘ฆ๐‘‘๐‘ฅ, changing the coordinate system, the new limits will be _____.ย Group of answer choices๐‘Ÿ: 4cosโก๐œƒto4secโก๐œƒ; ๐œƒ:ย 0๐‘ก๐‘œ๐œ‹/4๐‘Ÿ: 4to4secโก๐œƒ; ๐œƒ:ย 0๐‘ก๐‘œ๐œ‹/4๐‘Ÿ: 4cosโก๐œƒto4secโก๐œƒ; ๐œƒ:ย ๐œ‹/4๐‘ก๐‘œ๐œ‹/2๐‘Ÿ: 4cosโก๐œƒto4; ๐œƒ:ย 0๐‘ก๐‘œ๐œ‹/2 PreviousNext

Question

Given the double integral: ย โˆซ24โˆซ4๐‘ฅโˆ’๐‘ฅ2๐‘ฅ๐‘ฆ2(๐‘ฅ2+๐‘ฆ2)3/2๐‘‘๐‘ฆ๐‘‘๐‘ฅ, changing the coordinate system, the new limits will be _____.ย Group of answer choices๐‘Ÿ: 4cosโก๐œƒto4secโก๐œƒ; ๐œƒ:ย 0๐‘ก๐‘œ๐œ‹/4๐‘Ÿ: 4to4secโก๐œƒ; ๐œƒ:ย 0๐‘ก๐‘œ๐œ‹/4๐‘Ÿ: 4cosโก๐œƒto4secโก๐œƒ; ๐œƒ:ย ๐œ‹/4๐‘ก๐‘œ๐œ‹/2๐‘Ÿ: 4cosโก๐œƒto4; ๐œƒ:ย 0๐‘ก๐‘œ๐œ‹/2 PreviousNext

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Solution

The given double integral is in Cartesian coordinates (x, y). To change the coordinate system to polar coordinates (r, ฮธ), we need to find the new limits of integration.

The given limits for x are from 4 to 2, and for y are from x to x^2.

In polar coordinates, x = rcos(ฮธ) and y = rsin(ฮธ).

Substituting x = 4, we get rcos(ฮธ) = 4. Solving for r, we get r = 4sec(ฮธ).

Substituting x = 2, we get rcos(ฮธ) = 2. Solving for r, we get r = 2sec(ฮธ).

For y = x, we get rsin(ฮธ) = rcos(ฮธ), which simplifies to tan(ฮธ) = 1. Solving for ฮธ, we get ฮธ = ฯ€/4.

For y = x^2, we get rsin(ฮธ) = (rcos(ฮธ))^2. This is a more complicated equation, but it simplifies to tan(ฮธ) = cos(ฮธ), which has solutions at ฮธ = 0 and ฮธ = ฯ€/2.

So, the new limits of integration in polar coordinates are r: 2sec(ฮธ) to 4sec(ฮธ), and ฮธ: 0 to ฯ€/4.

This problem has been solved

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