# Bonus...

• February 17th 2009, 04:37 AM
josh_lea
Bonus...
Rationalize the Numerator:

{(Sq. Root of X+h) - (Sq. root of X) / h}

This is a bonus question!?
Help!?
Thank You!!!!!!!!!!
• February 17th 2009, 06:25 AM
stapel
Quote:

Originally Posted by josh_lea
Rationalize the Numerator:

{(Sq. Root of X+h) - (Sq. root of X) / h}

You rationalize the numerator in the same way that you rationalize a denominator: by multiplying by the conjugate. So multiply, top and bottom, by:

$\sqrt{X\, +\, h}\, +\, \sqrt{X}$

Have fun! :D