Question

Let F = 1 x i + 1 y j and let n be the outward unit normal vector to the positively oriented circle x2 + y2 = 1. Compute the flux integral ∫C F ·n ds.

Answer 1

so whats a fluxion?

Answer 2

you can use x=rcost and y=rsint to find your r(t) vector and then use that to find your normal vector but don't forget that ds is the same as saying r'(t)