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

nickymarden Group Title

derive the equation.

  • 2 years ago
  • 2 years ago

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

    • 2 years ago
  2. Rogue Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    Senx? What kind of math is this? :o

    • 2 years ago
  3. nbouscal Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    Is that supposed to be sin x?

    • 2 years ago
  4. nickymarden Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    sorry, it's in portugese :) and yes it is.

    • 2 years ago
  5. Rogue Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    Probably. But what is the question asking for? Derive it from...?

    • 2 years ago
  6. nbouscal Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    Okay, so \(g(x)=(\sin x+\sqrt{x})^3\cdot\sqrt{x^4+2}\) and you're looking for \(g'(x)\)?

    • 2 years ago
  7. lgbasallote Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    no wonder i have seen these sen x for a lot of times i thought they taught secret trigonometry to people -___-

    • 2 years ago
  8. nbouscal Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    So, use the product rule and the chain rule, yeah? Which part are you getting stuck at?

    • 2 years ago
  9. nickymarden Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    i'm sorry for taking long. I was tryig to do it by myself. I just can't do it lol

    • 2 years ago
  10. nbouscal Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    Show us your work so we can see where you're getting lost.

    • 2 years ago
  11. nbouscal Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    First step, product rule, right? So \(f(x)=(\sin x+\sqrt{x})^3, g(x)=\sqrt{x^4+2}\), and we're finding \(f'(x)g(x)+g'(x)f(x)\)

    • 2 years ago
  12. nickymarden Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    yeeah

    • 2 years ago
  13. Rogue Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    \[g(x) = (\sin x + \sqrt x)^3 *\sqrt {x^4 +2}\]This gets messy...\[\frac {dg}{dx} = (\sin x + \sqrt x)^3 \frac {d}{dx} \left[ \sqrt {x^4 +2} \right] + \sqrt {x^4 +2} \frac {d}{dx} \left[ (\sin x + \sqrt x)^3 \right]\]

    • 2 years ago
  14. Rogue Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    As nbouscal said, where do you get stuck?

    • 2 years ago
  15. nickymarden Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    yeah, i get lost in all the algebra.

    • 2 years ago
  16. nickymarden Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    i just erased it all, let me try again lol.

    • 2 years ago
  17. nbouscal Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    Take it one step at a time. First step is to find f'(x), so derive \((\sin x + \sqrt x)^3\) using the chain rule.

    • 2 years ago
  18. nickymarden Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    thank you for the help :))

    • 2 years 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.