A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 4 years ago
Find the limit as x approaches 4.
[sqrt(x^21)sqrt(15)]/(x4)
anonymous
 4 years ago
Find the limit as x approaches 4. [sqrt(x^21)sqrt(15)]/(x4)

This Question is Closed

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0dw:1327298260320:dw

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Lhopital rule. Derivative of top and bottom.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Could you show me how to find the derivative?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0(1/2)(x^2  1)^(1/2) * 2x

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0chain rule for the first one

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0bottom basically turns to 1 because you have the variable to the first power and plus or minus a constant

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0The top should be rewritten to (x^2  1)^(1/2)  (15)^(1/2) The constant(15^1/2) turns into a zero. So you're left only doing (x^2  1)^(1/2). Drop the power so you get (1/2)(x^2 1 )^(1/2) Then you do chain rule. Derive the inside you end up getting (x)(x^2 1)^(1/2) dw:1327298668258:dw

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Forgot about the limit part. Basically you just plug 4 back in there. dw:1327298727681:dw

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0snakefangs thanks for the insight, but we haven't even gotten into the chapter about derivatives and the chain rule yet, im just having trouble getting this out of indeterminant form.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Ah... sorry about that then I'll try and see if i can apply some algebraic method.
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.