- #1
sara_87
- 763
- 0
Homework Statement
v is in polar coordinates and i want to fin u(x,y) knowing that v(r,theta)=u(rcos(theta),rsin(theta))
therefore, u(x,y)=v(sqrt(x^2+y^2), arctan(y/x))
v(r,theta) = 9+18cos(2(theta))-9sin(4(theta))
question: what is u(x,y)?
Homework Equations
The Attempt at a Solution
u(x,y)=9+18cos(2arctan(y/x))-9sin(4arctan(y/x))
Is this correct and can i simplify this more?
Thank you.