Given a vector field F=$y^2$x$a_x$-yz$a_y$-$x^2$$a_z$ the line integral $\int F.dl$ evaluated along a segment

on the $x$-axis from $x$=$1$ to $x$=$2$ is

1. $-2.33$
2. $0$
3. $2.33$
4. $7$

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