I am wondering if there is a way to calculate limits or functions as x=> a certain point say x=>1 using derivatives? I remember there being a way to do it but I can't find any stuff online or in books
thanks
Hello,
l'Hôpital's rule - Wikipedia, the free encyclopedia
But it's not for any sort of limits. Sometimes (and often), you'll have to think by yourself
-------------------------------
Okay, there may be something else (since I'm not sure what you're asking for ^^') !
Do you know about conjugates ?
This is mostly about this identity :
So when you have a square root that's disturbing you, you can multiply by its conjugate, because it will square the square root.
For example, the conjugate of is
So the trick (that you can use in many situations) is to multiply by
------------------------------------
Otherwise, your derivative (not the answer) is correct.
Remember that l'Hospital's rule is used in situations or