d
--((t + sin(22*t), x))
dx
$$\frac{\partial}{\partial x} \left( t + \sin{\left(22 t \right)}, \ x\right)$$
2
d
---((t + sin(22*t), x))
2
dx
$$\frac{\partial^{2}}{\partial x^{2}} \left( t + \sin{\left(22 t \right)}, \ x\right)$$
3
d
---((t + sin(22*t), x))
3
dx
$$\frac{\partial^{3}}{\partial x^{3}} \left( t + \sin{\left(22 t \right)}, \ x\right)$$