$7.$ If C is the curve given by r$($t$)=(1+2$sint$)$i $+(1+4$sin$2$t$)$j $+(1+$sin$3$t$)$k$,0$ t $$ $2$ and F is the radial vector field F$($x$,$y$,$z$)=$ xi $+$ yj $+$ zk$,$ compute the work done by F on a particle moving along C