Determine whether the curl of each vector field $\vec{F}$ at the origin (in red) is $\vec{0}$ or points in the same direction as $\pm \vec{i}, \pm \vec{j}$, or $\pm \vec{k}$.

Choose <0,0,0> i = <1,0,0> -i = <-1,0,0> j = <0,1,0> -j = <0,-1,0> k = <0,0,1> -k = <0,0,-1>		Choose <0,0,0> i = <1,0,0> -i = <-1,0,0> j = <0,1,0> -j = <0,-1,0> k = <0,0,1> -k = <0,0,-1>
Choose <0,0,0> i = <1,0,0> -i = <-1,0,0> j = <0,1,0> -j = <0,-1,0> k = <0,0,1> -k = <0,0,-1>		Choose <0,0,0> i = <1,0,0> -i = <-1,0,0> j = <0,1,0> -j = <0,-1,0> k = <0,0,1> -k = <0,0,-1>

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