Permutasi dari -Belajar Jgn ngasal ok

B = 1

e = 1

l = 1

a = 2

j = 1

r = 1

Total huruf = 7

Unsur ganda = a = 2

P = 7! / 2!

P = 7 × 6 × 5 × 4 × 3 × 2 × 1 / 2 × 1

P = 7 × 6 × 5 × 4 × 3

P = 2.520 kata ✔️