Question

Simplifique A6,n + A4,n-2

____________
A5,n-1 + A3,n-3

Answer 1

`(n-1)/(n-2)`

Explanation:

Given

`(n+n-2)/(n-1+n-3)`

Then simplify the numerator as

n+n-2 = 2n-2

Also simplify the denominator as

n-1+n-3 = 2n-4

Rewrite as

`(2n-2)/(2n-4)\\ \\\\(2(n-1))/(2(n-2))`

cancel 2/2 to get 1 and remain with;

`(n-1)/(n-2)`