In Changing from Cartesian to Polar Coordinates $\frac { \partial r } { \partial y }$

question 2

Multiple Choice

In changing from Cartesian to polar coordinates, $\frac { \partial r } { \partial y }$ is

• A) \(\sin \theta\)
• B) \(\cos \theta\)
• C) \(\sin \theta / r\)
• D) \(\cos \theta / r\)
• E) \(- \sin \theta / r\)

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Definitions:

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A statistical measure that quantifies the amount of variation or dispersion of a set of data values from the mean.

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The return or reward received from an investment or action.

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The results obtained from a particular action or set of circumstances, typically measured in terms of benefits, profits, or yields.

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