Please help Rationalize: square root of (5+h) minus square root of 5 divided by h
N nowhiz2 New member Joined Sep 2, 2010 Messages 3 Sep 2, 2010 #1 Please help Rationalize: square root of (5+h) minus square root of 5 divided by h
mmm4444bot Super Moderator Joined Oct 6, 2005 Messages 10,962 Sep 2, 2010 #2 We rationalize this numerator using its conjugate. Multiply the top and bottom of the given ratio by sqrt(5 + h) + sqrt(5). Simplify the top first because there will be a cancellation with the h on bottom.
We rationalize this numerator using its conjugate. Multiply the top and bottom of the given ratio by sqrt(5 + h) + sqrt(5). Simplify the top first because there will be a cancellation with the h on bottom.
N nowhiz2 New member Joined Sep 2, 2010 Messages 3 Sep 3, 2010 #3 I end up with 1 over sqrt 5+h + sqrt 5 is that right?
mmm4444bot Super Moderator Joined Oct 6, 2005 Messages 10,962 Sep 3, 2010 #4 Yes. Using a keyboard, we type it this way: 1/[sqrt(5 + h) + sqrt(5)]