Question

simplify the expression:
1. 64 * 63!
option:
A. 65!
B. 64!
C. 66!
D. 63!​

Answer 1

Answer:

$64 \times 63fctorial \\ = 64 \times (1 \times 2 \times .......63) \\ = 1 \times 2 \times .......63 \times 64 \\ = 64factorial \\ thank \: you$

Answer 2

Answer:

64!

Step-by-step explanation:

n * (n-1)! = n!

64 * 63! = 64 * (64-1)! = 64!