Hey guys having trouble solving this . Use l’Hopital’s rule to find:

any help much appreciated

Printable View

- Mar 27th 2009, 09:59 PMjvignaciol’Hopital’s Rule Help..
Hey guys having trouble solving this . Use l’Hopital’s rule to find:

any help much appreciated - Mar 27th 2009, 10:19 PMADARSH
- Mar 27th 2009, 10:36 PMjvignacio
- Mar 27th 2009, 10:45 PMADARSH

1)Find derivatives separately

2) Divide the numerator's derivative by denominator's derivative

3)If on putting the limit you get a definite answer than game over!!

4) If not than go to step 1

---------------------------------------------------

I strongly recommend reading examples here

The answer of this question will be -1/2 (after you follow above steps) (Happy)

Adarsh

- Mar 27th 2009, 11:40 PMjvignacio
- Mar 28th 2009, 12:06 AMADARSH
Denominator =D Numerator =N

Derivative of Numerator ...(Also called N'(x))

Derivative of Denominator ...(Also called D'(x) )

According to the l'Hopital's rule

http://upload.wikimedia.org/math/7/0...97ae0096aa.png

So using this

Your Limit now becomes

http://www.mathhelpforum.com/math-he...daea34ad-1.gif

Once again applying the same rule this limit becomes

Now put the limit