Tulis dengan notasi faktorial! a. 1/4.5.6 b. 8.7.6/1.2.3

a. 1/4.5.6 = 1/(1..2.3.4.5.6 - 1.2.3 ) = 1/(6! - 3!) b. (1.2.3.4.5.6.7.8 - 1.2.3.4.5)/(1.2.3)=(8! - 5!)/3!