General solution of the partial differentiation equation \(\frac{{\partial z}}{{\partial x}} + 3\frac{{\partial z}}{{\partial y}} = 3{x^2}\sin \left( {y - 3x} \right)\) will be
1
f [3y – x, x3 sin (3y – x) – z] where f is an arbitrary function
2
f [y – 3x, x3 sin (y – 3x) – z] where f is an arbitrary function
3
f [y + 3x, x3 sin (y + 3x) – z] where f is an arbitrary function
4
f [3y + x, x3 sin (3y + x) – z] where f is an arbitrary function