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

3psilon Group Title

f(x) = x^3*g(x) , g(-7) = 2 , g'(-7) = -9 . What is f'(7) ?

  • one year ago
  • one year ago

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

    apply multiplication rule for derivatives i dont remember that actual name for it

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

    use the chain rule to find derivative of f(x)

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

    "product rule"

    • one year ago
  4. miteshchvm Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    \[f \left( x \right)= x^3 \times g \left( x \right) \] you mean this?

    • one year ago
  5. 3psilon Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    yes

    • one year ago
  6. miteshchvm Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    \[f \prime \left( x \right)= x^3 \times \left( \frac{ d }{ dx } \right)g \left( x \right) + g \left( x \right) \times \left( \frac{ d }{ dx } \right)x^3\]

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

    \[f \prime \left( x \right)= x^3 \times g \prime \left( x \right) + g \left( x \right) \times 2x^2\]

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

    \[f \prime \left( x \right)= x^3 \times g \prime \left( x \right) + g \left( x \right) \times 3x^2\] this one

    • one year ago
  9. miteshchvm Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    now to find \[f \prime \left( 7 \right) =7^3 \times \left( -9 \right) + 2 \times \left( 3 \times7^2 \right)\]

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

    what is g(7), only know g(-7)

    • 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.