Question

Evaluate 4!7! divided by 6!8!

Answer 1

! is factorial
it means multipliy all numbers from 1 to that number together
example
1!=1
2!=2*1
3!=3*2*1
etc

some things to note
7!*8=8!
4!*5*6=6!



`((4!)(7!))/((6!)(8!))`
so we can rewrite it as

`((4!)(7!))/((4!)(5)(6)(7!)(8))`=

`(1)/((5)(6)(8))`=

`(1)/(240)`