Converting between Rectangular Equations, (equations that contain x and y) and Polar Equations (equations that utilize r and theta (u) instead). When converting from x and y to r and u, use these equations:
x = rcos(u)
y = rsin(u)
When converting from r and u to x and y, use these equations:
tan(u) = y/x
r^2 = x^2 + y^2 (r squared = x squared + y squared)
This is a very confusing concept for me. When some problems don't give you enough information it confuses me on what to do. This is great review and helped me. This made me understand this concept. Thanks!
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