Quantcast

Got Homework?

Connect with other students for help. It's a free community.

  • across
    MIT Grad Student
    Online now
  • laura*
    Helped 1,000 students
    Online now
  • Hero
    College Math Guru
    Online now

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

ChrisV

Find the indefinite integral.

  • one year ago
  • one year ago

  • This Question is Closed
  1. ChrisV
    Best Response
    You've already chosen the best response.
    Medals 0

    \[\int\limits_{?}^{?}xsin3x^2dx\]

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

    so if i were using u substitution u = 3x^2??

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

    du/dt=6x??

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

    an du/6=xdx?

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

    Yes you are right @ChrisV You get \[\int\limits_{}^{} \sin (u) du = -\cos (u) +C\] \[-\cos(u) +C = -\cos(3x^2 / 2) +C\]

    • one year ago
  6. amistre64
    Best Response
    You've already chosen the best response.
    Medals 0

    i tend to solve for dx outright; du/6x = dx and when you sub it in the xs cancel regardless

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

    I forgot to divide the answer by 6

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

    And also it is only 3x^2 and not 3x^2/2 . Sorry :P

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

    -1/6cos3x^2 +c

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

    ?

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

    Yes you are right @ChrisV

    • one year ago
    • Attachments:

See more questions >>>

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.