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

Nikhil619

Find dy/dx if y= tan(cos(e^sqrt(x^2+1)))

  • one year ago
  • one year ago

  • This Question is Closed
  1. amistre64
    Best Response
    You've already chosen the best response.
    Medals 1

    its just an application of chaining a chain ....

    • one year ago
  2. amistre64
    Best Response
    You've already chosen the best response.
    Medals 1

    \[\frac{d}{dx} f(g(h(k(...(x)))))=f'()~g'()~h'()~k'()~.......x'\]

    • one year ago
  3. Nikhil619
    Best Response
    You've already chosen the best response.
    Medals 0

    wait what i dont get it..

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

    amistre is showing off :D

    • one year ago
  5. Nikhil619
    Best Response
    You've already chosen the best response.
    Medals 0

    @amistre64

    • one year ago
  6. Nikhil619
    Best Response
    You've already chosen the best response.
    Medals 0

    @perl can u help?

    • one year ago
  7. amistre64
    Best Response
    You've already chosen the best response.
    Medals 1

    all this amounts to is chain rule practice .... if you know the chain rule, then its just a matter of keeping a clean record

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

    amistre, i dont thats right though

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

    |dw:1366900627282:dw|

    • one year ago
  10. Nikhil619
    Best Response
    You've already chosen the best response.
    Medals 0

    ok so im new to this ..can u teach me pls?

    • one year ago
  11. amistre64
    Best Response
    You've already chosen the best response.
    Medals 1

    there are some cases where the mechanism of a derivative works, but the equation itself is bad .... i dont think this is the case tho

    • one year ago
  12. Nikhil619
    Best Response
    You've already chosen the best response.
    Medals 0

    what do u want me to do?

    • one year ago
  13. Nikhil619
    Best Response
    You've already chosen the best response.
    Medals 0

    :O

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

    |dw:1366900684785:dw|

    • one year ago
  15. amistre64
    Best Response
    You've already chosen the best response.
    Medals 1

    y= tan(cos(e^sqrt(x^2+1))) let: f = tan(g) g= cos(h) h = e^j j = sqrt(k) k = x^2+1

    • one year ago
  16. Nikhil619
    Best Response
    You've already chosen the best response.
    Medals 0

    ok..

    • one year ago
  17. amistre64
    Best Response
    You've already chosen the best response.
    Medals 1

    then find the derivative of each one, and multiply them all together ...

    • one year ago
  18. Nikhil619
    Best Response
    You've already chosen the best response.
    Medals 0

    but hw can i take derivative of tan(g)(h)(j)(k) ?

    • one year ago
  19. amistre64
    Best Response
    You've already chosen the best response.
    Medals 1

    take the derivative of f take the derivative of g take the derivative of h ... NOT take the derivative of f tan(g)(h)(k)...

    • one year ago
  20. Nikhil619
    Best Response
    You've already chosen the best response.
    Medals 0

    ok so i go backwards?

    • one year ago
  21. amistre64
    Best Response
    You've already chosen the best response.
    Medals 1

    let: f = tan(g) f' = ??? g= cos(h) g' = ??? h = e^j h' = ??? j = sqrt(k) j' = ??? k = x^2+1 k' = ???

    • one year ago
  22. amistre64
    Best Response
    You've already chosen the best response.
    Medals 1

    take them one at a time

    • one year ago
  23. Nikhil619
    Best Response
    You've already chosen the best response.
    Medals 0

    ok..so k'=2x and j'= 1/x^1/2 rite?

    • one year ago
  24. amistre64
    Best Response
    You've already chosen the best response.
    Medals 1

    correct

    • one year ago
  25. amistre64
    Best Response
    You've already chosen the best response.
    Medals 1

    except use the "variable" as in each case; only the last one uses an x

    • one year ago
  26. amistre64
    Best Response
    You've already chosen the best response.
    Medals 1

    let: f = tan(g) f' = sec^2(g) g= cos(h) g' = -sin(h) h = e^j h' = j e^j j = sqrt(k) j' = 1/(2sqrt(k)) k = x^2+1 k' = 2x

    • one year ago
  27. Nikhil619
    Best Response
    You've already chosen the best response.
    Medals 0

    ok can u wait fr a few moments..ill try solving the whole thing and tell u the answer so u can tell me if its right or wrong?

    • one year ago
  28. amistre64
    Best Response
    You've already chosen the best response.
    Medals 1

    i would personally leave it in a "defined" format so that it is cleaner to write up

    • one year ago
  29. Nikhil619
    Best Response
    You've already chosen the best response.
    Medals 0

    but tom i have an exam..so there i cant keep it clean..i have 2 give the answer..so ill solve it..would u pls pls check it?

    • one year ago
  30. amistre64
    Best Response
    You've already chosen the best response.
    Medals 1

    ill chk it when your done ....

    • one year ago
  31. Nikhil619
    Best Response
    You've already chosen the best response.
    Medals 0

    wait..fr e^j shouldnt it be e^j * d/dx of j?

    • one year ago
  32. amistre64
    Best Response
    You've already chosen the best response.
    Medals 1

    hmmm, j' e^j yes, but your already solving for j' so thats really just e^j

    • one year ago
  33. amistre64
    Best Response
    You've already chosen the best response.
    Medals 1

    the j' is part of the chain rule process, which you are already doing ....

    • one year ago
  34. amistre64
    Best Response
    You've already chosen the best response.
    Medals 1

    good eye :)

    • one year ago
  35. Nikhil619
    Best Response
    You've already chosen the best response.
    Medals 0

    :D thnx...fr ure help also.. :)

    • 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.