Q2). In questions 2.1 to 2.10 . Fill in the blank(_) suitably
2.8). Given $\vec v= x\cos ^2y \hat i + x^2e^z\hat j+ z\sin^2y\hat k$ and $S$ the suface of a unit cube with one corner at the origin and edges parallel to the coordinate axes, the value of integral
$\int^1 \int_s \vec V. \hat n dS$
is __________.