Question

100 factorial supra 98 factorial

Answer 1

100!/98! se poate simplifica numaratorul prin 98! si ramane 99*100.
100!/98!=99*100=9900

Answer 2

$\frac{100!}{98!}=\frac{98!\cdot99\cdot100}{98!}\\ \\=\frac{99\cdot100}{1}=\\ \\ =9900$

$100!=1\cdot2\cdot3...\cdot100$