Identify the conservative vector fields. Select all answers that apply.

Answer

$F(x,y,z)=($:$8,xy,0$:$)$

$F(x,y)=($:$y^9,x{y}^9$:$)$

$F(x,y,z)=($:$y^{5}z,5x{y}^{4}z,x{y}^5$:$)$

$F(x,y)=($:$y^3,3x{y}^2$:$)$