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:

Effective Price

The actual price that is paid for a product or service after accounting for discounts, subsidies, or taxes.

Effective Price

The final price after accounting for subsidies, taxes, or other incentives, effectively what the consumer pays or receives.

Demand Curve

A visual depiction highlighting how the price of an item or service influences the quantity of that item or service that people are willing to purchase over a designated period.

Demand Curve

A graphical representation showing the relationship between the price of a good or service and the quantity demanded for a certain period of time.