Answer:
C. 1 / (a(a - 1))
Step-by-step explanation:
View Image
Just know that:
n! = n(n-1)!
= n(n-1)(n-2)!
= n(n-1)(n-2)(n-3)!
= ...
HELP PLS LAST ONE Simplify (4y³ – 2y +9) − (2y³ − 3y² + 4y + 7).
1 answer:
You might be interested in
Answer:
C. 1 / (a(a - 1))
Step-by-step explanation:
View Image
Just know that:
n! = n(n-1)!
= n(n-1)(n-2)!
= n(n-1)(n-2)(n-3)!
= ...