Question

If n is a natural number then the vale of factorial n + factorial n+1 is​

Answer 1

n! + (n+1)!

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

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

= n(n-1)! [ n+2 ]

= n(n+2) (n-1)!

Answer 2

Q.) If n is a natural number then we define n! (pronounced as factorial n) to be the product n×(n−1)×(n−2)×....×2×1For example 4! = 4 x 3 x 2 x 1 = 24 If 6! = a!×b! where a > 1 and b > 1 then a + b is _____.

• 6!=3!×2!
• 3!=3×2×1
• 2!=2×1
• 3!+2!=(3×2×1)+(2×1)
• =6+2=8

ans...8

hope it helps❤