As both the numerator and the denominator in your function approach 0 when x --> 9 and both are derivable functions around x = 9, you can Use L'Hospital's Rule here. The answer is 4.
As both the numerator and the denominator in your function approach 0 when x --> 9 and both are derivable functions around x = 9, you can Use L'Hospital's Rule here. The answer is 4.
Tonio
Here is what i have done
Using L'Hospitals rule
= = ...............eq(1)
= = ..................eq(2)
Now taking lim of eq (1) and eq(2) we get
= = =
Last edited by zorro; December 27th 2009 at 07:09 PM.