Question

simply (2n +2)!/2n!​

Answer 1

Answer:

n+1/n

.......anwser. is h ere

Answer 2

Answer:

Step-by-step explanation:

Remembering that we can write:

n!=n⋅(n−1)!

we have (applying twice the above property to the numerator):

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

= (2n+2)/(2n+1)

Check with  

n =3

(2 n+2)!/(2n)!

= 8!/6!

= 40320/720

= 56

and:

(2n+2)(2n+1)

= 8⋅7

= 56

done!!bingo