A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 5 years ago
integration
anonymous
 5 years ago
integration

This Question is Closed

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0\[\int\limits{4x(14x)^{3}}\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0This one's a little less intuitive. Let u = 14x. Then, you end up with ∫ (1u)*u^3 du, and you can expand after that  at the end, just plug in the value of u and you're finished.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0I had u=14x but i dont understand how you got (1u) x u^3 du

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Alright, so we have u = 14x, which subs into the integrand as u^3. Then, we have 4x = 1u, so we can put (1u) into the equation instead of 4x. Then, we know that du = 4 dx, so dx = du/4, which you can plug into the integrand as well. I think in total you get 1/4 * ∫(1u)*u^3 du

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0thats right! thanks you. i finally understand
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.