$1.$Let F$($x$,$y$,$z$)=($x$^(2)$y$)$i$+(2$xy$^(2))$j Evaluate the line integrals along the two paths: $((0,0),(3,1),(3,3))$ and $((0,0),(3,3))\mathrm{.}2.$ Is the integral path independent? Explain your answer.