Question

If n! + (n - 1)! = 30, then find the value of n.​

Answer 1

Answer:

hloo mate...

here's ur answer...

Step-by-step explanation:

n.(n-1)!+(n-1)!=30

taking (n+1)! as common.

(n-1)! [n+1]=30

n+1=30/(n-1)!

n=30/(n-1)! - 1

hope it helps.....

plzzz mark brainliest..