$$\frac{d}{d x} \left( x - 1, \ x + 1\right)$$
2
d
---((x - 1, x + 1))
2
dx
$$\frac{d^{2}}{d x^{2}} \left( x - 1, \ x + 1\right)$$
3
d
---((x - 1, x + 1))
3
dx
$$\frac{d^{3}}{d x^{3}} \left( x - 1, \ x + 1\right)$$
3
d
---((x - 1, x + 1))
3
dx
$$\frac{d^{3}}{d x^{3}} \left( x - 1, \ x + 1\right)$$