curl(F) N dS, where (x, y, 2) = -y(a² + y³)2021 î + In(z +1)e*y² }+ z2021 V²+ y? k and S is the portion of the surface z = x? +y² lying below the plane z = 1, oriented dowmward. (Hint: Do NOT try to compute the integral directly. Use Stokes theorem!)

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