Ask your own question, for FREE!
Mathematics 20 Online
OpenStudy (anonymous):

Jhghjkkhb

OpenStudy (anonymous):

i can do it without using l'hospitals rule but i have to

OpenStudy (anonymous):

@satellite73 @surjithayer @jim_thompson5910

OpenStudy (paxpolaris):

so take the derivative of numerator and denominator...

OpenStudy (anonymous):

i did and i got \[1/(x/\sqrt(x^2+1))\]

OpenStudy (paxpolaris):

\[\large \lim_{x \to \infty} {x \over \sqrt{x^2+1}}\]

OpenStudy (anonymous):

but after you differentiate both dont you have to keep doing it continually because it never stops being an indeterminate?

OpenStudy (paxpolaris):

right ... \[\large = \lim_{x \to \infty} { \sqrt{x^2+1}\over x}\] ... looks like you're right

OpenStudy (anonymous):

why use l'hopital? just asking

OpenStudy (paxpolaris):

the answer is 1 right?

OpenStudy (anonymous):

sure

OpenStudy (anonymous):

eyeball this one

OpenStudy (anonymous):

thats what we are learning right now in class. i know its 1 because i can solve it without l'hopitals

OpenStudy (anonymous):

well that is a fine how do you do if you use l'hopital the first thing you get is \[\frac{\sqrt{x^2+1}}{x}\] right ?

OpenStudy (anonymous):

never mind i read the directions wrong. we're supposed to solve it without l'hopitals and solve a different way. sorry for the trouble

OpenStudy (anonymous):

which tells you one thing, if the limit exists and is say \(L\) then \(L=\frac{1}{L}\)

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!