2. Given the function f(x)=1/x+1 Mr F says:

Is it (1/x) + 1 or 1/(x+1)? It is

1/(x+1) sorry about the confusion.

find the following expression and simplfy: f(a+h)-f(a)/h

Given that:

f(a+h)=1/a+h+1

f(a)=1/a+1

1. find the domain of p(x)=(x^2-2x/x-1) all under a square root sign.

I was thinking that x could not equal 1,2 the 1 would make the denominator 0 and the 2 would make the numerator 0. So I have no idea because it wasn't the right answer at all.

1. You require the solution to

where

.

I was confused by this??? That question was all under a square root.