Question

If f(x) =x/x-1
then
f(a)/
f(a + 1)

Answer 1

Answer:

................................

Answer 2

Answer:

$f(x) = \frac{x}{x - 1}$

$f(a) = \frac{a}{a - 1}$

$f(a + 1) = \frac{a + 1}{a + 1 - 1}$

$f(a + 1) = \frac{a + 1}{a }$

now finding   $\frac{f(a)}{f(a + 1)}$

$= \frac{\frac{a}{a - 1}}{ \frac{a + 1}{a }}$

$= \frac{a * a}{(a - 1)(a + 1)}$

$= \frac{a^{2} }{a^{2} - 1}$