Question

In: Math

f(r,?) f(x,y) r(cos(?)) = x r(cos(2?)) = ? r(cos(3?)) = x3-3xy2/x2+y2 r(cos(4?)) = ? r(cos(5?)) =...

f(r,?) f(x,y)
r(cos(?)) = x
r(cos(2?)) = ?
r(cos(3?)) = x3-3xy2/x2+y2
r(cos(4?)) = ?
r(cos(5?)) = ?

Please complete this table. I am having trouble converting functions from polar to cartesian in the three dimensional plane.

I understand that x=rcos(?) and y=rsin(?) and r2 = x2 + y2 , but I am having trouble understanding how to apply these functions.

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