f(x)=1/x so
x=1/f(x)
denominator = x-a =(1/[f(x)] - 1/[(f(a)])
=[f(a)-f(x)]/f(a)f(x)
=-[f(x)-f(a)]/f(x)f(a)
where f(x)-f(a)=numerator
Hello, I'm trying to do a review of functions and I'm having difficulty on this one:
The problem is
I've tried a few possible ways, getting the denominators the same in the numerator. No luck. Probably missing something simple.
Can someone point me in the right direction?