Question

6! = 3! • 2! = =
Evaluate each expression

Answer 1

factorial of n is given as

n! = n × (n-1) × (n-2)× . . . . . × 1

so lets solve it

6! = 6 × (6-1) × (6-2) × ( 6-3)×(6-4)×(6-5)

= 6×5×4×3×2×1

=720

similarly

3! = 3×2×1 =6

2!= 2×1= 2

3! × 2! = 6×2= 12

Answer 2

120

Explanation:

! means 3*2*1

so 6*1=6*5*4*3*2*1

6=720

720/6=120