Determine the largest subset of R3 on which the given vector field is differentiable_ F = (~x2 _ y2 _ 22 + 9)4/3, cos(yz) , 4 _ 22 {(x, Y, 2) € R3 | z # *2} {(x, Y, 2) € R3 |x2 + y2 + 22 < 9} {(x, Y, 2) € R3 |x2 + y2 + 22 > 9} {(X, Y, 2) €R3 | z # *4} {(x, Y, 2) € R3 | xy # 0} X
