$[-/2$ Points$]$

MARSVECTORCALC$68\mathrm{.}2\mathrm{.}007.$

Let $C$ be the closed, piecewise smooth curve formed by traveling in straight lines between the points $(0,0,0,(3,2,24),(1,2,8),$ and back to the origin, in that order. $($Thus the surface $S$ lying interior to $C$ is contained in the plane $z=8x.)$ Use Stokes' theorem to evaluate the following integral.

${\displaystyle \underset{C}{\overset{\phantom{}}{}}}(zcos(x))dx+(x^{2}yz)dy+(yz)dz$

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$3.[-/3$ Points$]$

MARSVECTORCALC$68\mathrm{.}2\mathrm{.}031.$