Rationalizing For Derivatives

[mathitup]

i have come to the equation,

1 . ............ 1
______ - ______
√(x+h)² √(x²-5)
_______________________
h

but im not sure how to rationalizie it because of the 1/...
is this correct below?

x √(x+h)² - 5 + √(x² - 5)
√(x+h)² - 5 + √(x² - 5)

sorry for the messy style the ..... between the 1's on top are justy to space it out
and below i would multiply that over itself.. sorry

 

[Gene]

You might want to review
http://www.karlscalculus.org/email.html
on how to type math. I get ?'s which are hard to interpret. It may be just me 'cause I use WebTV which has font trouble.
You might also click twice on the C(ode) button then type your equations between the boxes. That keeps the spaceing.
-------------------
Gene