Question

What Is the product? 4n/4n-4*n-1/n+1

Answer 1

n/(n+1) . . . . n ≠ 1

Explanation:

As written, there is no product. There is ony the sum ...

`4(n)/(4)-4n-(1)/(n)+1`

With appropriate parentheses, this becomes the product of rational functions ...

... (4n)/(4n-4)·(n-1)/(n+1)

`=(4n(n-1))/(4(n-1)(n+1))=(n)/(n+1)`

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At n=1, the product has a "hole" where the denominator of the original expression is zero, so the expression is undefined. Hence the domain of the product must be restricted to n≠1 (as well as n≠-1).