Find the cartesian equation of ?
choices:
A. xy = 9
B. 3xy = 9
C. 2xy = 9
D. 4xy = 9
This is what ive done
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!