Question

Find a20 if an = (n-1) (2-n)(3+n)​

Answer 1

Answer:

-7866

Step-by-step explanation:

an=(n-1)(2-n)(3+n)

n=20

a20=(20-1)(2-20)(3+20)

a20=(19)(-18)(23)

=-7866

Answer 2

Answer:

I hope this answer will help