Question

Express in polar coordinates

Answer 1

\(x = r \cos \theta\)
\(y = r \sin \theta\)

Answer 2

plugin

Answer 3

\[9(rcos \theta)(rsin \theta)\] ...?

Answer 4

Yep ! set it equal to 4

Answer 5

omg! i get it lol

Answer 6

so simple!

Answer 7

you may leave it there, but it wil look good to write sinxcosx as 1/2sin2x

Answer 8

well actually this is the answer the book gives...

Answer 9

and perhaps \(r^2\)

Answer 10

& i got exactly that ^^ :)