Find the cartesian equation of ?

choices:

A. xy = 9

B. 3xy = 9

C. 2xy = 9

D. 4xy = 9

This is what ive done

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- December 1st 2011, 12:00 PMTechnicianEngineerPolar to cartesian
Find the cartesian equation of ?

choices:

A. xy = 9

B. 3xy = 9

C. 2xy = 9

D. 4xy = 9

This is what ive done

- December 1st 2011, 12:07 PMmr fantasticRe: Polar to cartesian
Why has 1/r appeared - out of nowhere - in the first line?

I don't agree with any of the given options.

**Edit:**OK, this is what happens when someone uses poor notation to express an equation. No doubt the 20 is meant to be , in which case you have

Learn latex please! - December 2nd 2011, 07:00 AMSorobanRe: Polar to cartesian
Hello, TechnicianEngineer!

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- December 2nd 2011, 10:55 AMTechnicianEngineerRe: Polar to cartesian
i apologize that the questionnaire was not well photocopied

i myself thought it was csc(20)