Question

How do you evaluate 100P3 using a calculator?

Answer 1

Type:
`100color(white)("xx")Xcolor(white)("xx")99color(white)("xx")Xcolor(white)("xx")98color(white)("xx")=`

Explanation:

`""_(100)P_3=(100!)/((100-3)!)=(100xx99xx98xx97xx96xx...)/(97xx96xx...)=100xx99xx98`