Let F(x,y,z)=<1,2,-1> Evaluate
a) the line integral $\int_C \mathbf{F} \cdot d\mathbf{r}$ where C is a curve
parametrized by $\mathbf{r}(t) = <t+1, t^2 - 1>$ for $t \in [-1, 1]$
b) the surface integral $\iint_S \mathbf{F} \cdot d\mathbf{S}$ where S is the
suraface parameterized by $\mathbf{r}(u,v) = <u, u^2, v>$ for $u \in [-1, 1]$ and $v \in [0, 2]$