A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

diamondboy

  • one year ago

Question

  • This Question is Closed
  1. diamondboy
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    |dw:1442085598415:dw|

  2. diamondboy
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @Ashleyisakitty

  3. diamondboy
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Could you please help me out @IrishBoy123

  4. IrishBoy123
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    |dw:1442085754297:dw|

  5. IrishBoy123
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    |dw:1442085839354:dw|

  6. IrishBoy123
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    it's worth doing this first!

  7. diamondboy
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    |dw:1442085908400:dw|

  8. IrishBoy123
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    IOW, you can do loads of boring subs or you can start spotting these patterns and start doing integration in your head pretty much

  9. diamondboy
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    |dw:1442086164257:dw|

  10. IrishBoy123
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    |dw:1442086191680:dw|

  11. diamondboy
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    +C

  12. diamondboy
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Is this the answer?

  13. IrishBoy123
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    |dw:1442086517027:dw| adjustment needed?

  14. Jhannybean
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    \[\sf \int \frac{2x^2}{\sqrt{5+x^3}}dx\implies 2\int \frac{x^2}{\sqrt{5+x^3}}dx \]\[\sf u=5+x^3 ~,~ du = 3x^2dx \implies \frac{du}{3}=x^2dx \]resub. \[\sf \frac{2}{3}\int \frac{du}{u^{1/2}}\]

  15. diamondboy
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    I finally got the answer

  16. diamondboy
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    yep @Jhannybean that was exactly how I did it.

  17. Jhannybean
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    I'm getting \(\dfrac{2}{3}\) and @IrishBoy123 is getting \(\dfrac{3}{2}\)?

  18. diamondboy
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    I got 4/3 (after final simplification)

  19. IrishBoy123
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    no! |dw:1442086992183:dw|

  20. diamondboy
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Thanks guys tho that was my final attempt

  21. Jhannybean
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    \[\sf 2\int\frac{1}{u^{1/2}} \cdot \frac{du}{3}= \frac{2}{3}\int\frac{du}{u^{1/2}}\]Oh okay

  22. Jhannybean
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    I thought I was making errors.... just woke up.

  23. IrishBoy123
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    |dw:1442087204185:dw| |dw:1442087262250:dw| lol!!!!

  24. Jhannybean
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    You spot patterns after you do a whole bunch of boring subs :P It's been years since ive done techniques of integration lol.

  25. IrishBoy123
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    @Jhannybean agreed!

  26. diamondboy
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    alright I believe none of u need anymore medals

  27. diamondboy
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Thanks guys

  28. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

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
  • 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.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.