Answer:
Therefore, the value of (x-1)!o(4x-1)!o is 5x × (x-1) × ... × 2 × 1.
Explanation:
(x-1)!o(4x-1)!o = ?
The formula for the factorial of a number is given by:
n! = n × (n-1) × ... × 2 × 1
So, we can write:
(x-1)!o(4x-1)!o = (x-1) × (x-2) × ... × 2 × 1 × (4x-1) × (4x-2) × ... × 2 × 1
= x × (x-1) × ... × 2 × 1 × 4x × (4x-1) × ... × 2 × 1
= x × 4x × (x-1) × ... × 2 × 1
= 5x × (x-1) × ... × 2 × 1