Question

Show that:
[(1/(x+h)) - (1/x)]/h
=
-1/(x(x+h))

Answer 1

show it

Answer 2

Let me clear things up: \[\dfrac{\left(\dfrac{1}{x+h} - \dfrac{1}{x}\right)}{h} = \dfrac{-1}{x(x+h)}\]

Answer 3

Hmm, I would get denominator same if I were you

Answer 4

to show do each side separate and simplify you will see at the very end they are equal and therefore you have shown that they are equal.

for this problem
left hand side