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$\backslash$table$[[$Entered$,$Answer Preview,Result$],[-2\mathrm{.}63932,-\frac{64}{14\sqrt[\phantom{2}]{3}},]]$

The answer above is NOT correct.

Compute the surface integral over the given oriented surface:

$F=y^{5}i+9j-xk,$ portion of the plane $x+y+z=1$ in the octant $x,y,z0,$ downward$-$pointing normal

${}_{S}F*dS=$

$$