Question

Simplifique A6,n + A4,n-2 ____________ A5,n-1 + A3,n-3

Answer 1

Answer:

$\frac{n-1}{n-2}$

Step-by-step explanation:

Given  

$\frac{n+n-2}{n-1+n-3}$

Then simplify the numerator as

n+n-2 = 2n-2

Also simplify the denominator as

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

Rewrite as

$\frac{2n-2}{2n-4}\\ \\\\\frac{2(n-1)}{2(n-2)}$

cancel 2/2 to get 1 and remain with;

$\frac{n-1}{n-2}$