Compute the flux \(\oint \mathbf{F} \cdot \mathbf{n} d\) s of \(\mathbf{F}\) across the curve \(C\) for the given vector field and curve using the vector form of Green's Theorem.

\(\mathbf{F}(x, y)=\langle x y, x-yangle\) across the boundary of the square \(-1 \leq x \leq 1,-1 \leq y \leq 1\)

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THEOREM 1 Green's Theorem Let D be a domain whose boundary 3D is a simple closed curve, oriented counterclockwise. If F and F2 have continuous partial deriva- tives in an open region containing D, then F aF = - SS (F-F) dA y & Fi dx + F2 dy: 2