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

Dido525

Find the derivative:

  • one year ago
  • one year ago

  • This Question is Closed
  1. Dido525
    Best Response
    You've already chosen the best response.
    Medals 0

    |dw:1349927470125:dw|

    • one year ago
  2. Dido525
    Best Response
    You've already chosen the best response.
    Medals 0

    I can easily find the derivative of the ln(x+ln(x+ln(x))) but I cant figure out how to find the derivative of the first part.

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

    i think it will be better to take the log of that part with the respect of e base.

    • one year ago
  4. Dido525
    Best Response
    You've already chosen the best response.
    Medals 0

    |dw:1349927833215:dw|

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

    |dw:1349927846691:dw|

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

    yeah.

    • one year ago
  7. Dido525
    Best Response
    You've already chosen the best response.
    Medals 0

    Okay I had an idea about that. But don't you have to do that for the ln(x+ln(x+ln(x))) as well?

    • one year ago
  8. Dido525
    Best Response
    You've already chosen the best response.
    Medals 0

    Like I thought you had to take the log of both sides for logarithmic differentiation.

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

    yes,or you may solve the two parts one by one

    • one year ago
  10. Dido525
    Best Response
    You've already chosen the best response.
    Medals 0

    So I thought you had to:|dw:1349927977970:dw|

    • one year ago
  11. Dido525
    Best Response
    You've already chosen the best response.
    Medals 0

    Do you do that?

    • one year ago
  12. Dido525
    Best Response
    You've already chosen the best response.
    Medals 0

    Don't*

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

    and even if you take the ln of ln(x+ln(x+ln(x))),there ain't any problem

    • one year ago
  14. Dido525
    Best Response
    You've already chosen the best response.
    Medals 0

    Yes yes. I knew that. But is that valid? I though you had to Log both sides of the ENTIRE term.

    • one year ago
  15. Dido525
    Best Response
    You've already chosen the best response.
    Medals 0

    Ohh? Why not?

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

    yes it is.

    • one year ago
  17. Dido525
    Best Response
    You've already chosen the best response.
    Medals 0

    How is it valid? Sorry for being stubborn.

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

    sorry to interrupt. but ln(A+B)\(\ne\)ln A + ln B so here you have to differentiate 1st term separately , using ln

    • one year ago
  19. Dido525
    Best Response
    You've already chosen the best response.
    Medals 0

    Ohh I know @hartnn . I didn't seperate it.

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

    |dw:1349928327564:dw|

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

    that is why you can find the derivatives separately

    • one year ago
  22. Dido525
    Best Response
    You've already chosen the best response.
    Medals 0

    Lol I know. By I mean why can you ln only the (arcsin)^Tan(x)? I though you had to ln EVERYTHING.

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

    "had to" <---no

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

    why?? if you solve them part by part, you are free to take the ln of one part without changing the other

    • one year ago
  25. Dido525
    Best Response
    You've already chosen the best response.
    Medals 0

    Ohh. Okay. That explains it.

    • one year ago
  26. Dido525
    Best Response
    You've already chosen the best response.
    Medals 0

    Fair enough haha...

    • one year ago
  27. Dido525
    Best Response
    You've already chosen the best response.
    Medals 0

    Could I do this instead? |dw:1349928628192:dw|

    • one year ago
  28. Dido525
    Best Response
    You've already chosen the best response.
    Medals 0

    For the derivative I mean.

    • one year ago
  29. Dido525
    Best Response
    You've already chosen the best response.
    Medals 0

    @sritama ,@hartnn

    • one year ago
  30. Dido525
    Best Response
    You've already chosen the best response.
    Medals 0

    @hartnn

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

    NO! what have u done!!

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

    i couldn't get it @Dido525 :(

    • one year ago
  33. Dido525
    Best Response
    You've already chosen the best response.
    Medals 0

    You make me chukle @hartnn .

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

    how and why will you do that?

    • one year ago
  35. Dido525
    Best Response
    You've already chosen the best response.
    Medals 0

    Well the derivative of a^x = a^x *ln(a)

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

    ln y = tan x ln(sin^-1 (x)) diff. this. no other way

    • one year ago
  37. Dido525
    Best Response
    You've already chosen the best response.
    Medals 0

    Okay okay :P .

    • one year ago
  38. Dido525
    Best Response
    You've already chosen the best response.
    Medals 0

    Then this question isn't so hard.

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

    is it ? what u get as y' ?

    • one year ago
  40. Dido525
    Best Response
    You've already chosen the best response.
    Medals 0

    Wait.

    • one year ago
  41. Dido525
    Best Response
    You've already chosen the best response.
    Medals 0

    Doing it now.

    • one year ago
  42. Dido525
    Best Response
    You've already chosen the best response.
    Medals 0

    I got: |dw:1349929346410:dw|

    • one year ago
  43. Dido525
    Best Response
    You've already chosen the best response.
    Medals 0

    For the derivative of (sin-1(x))^(tan(x))

    • one year ago
  44. Dido525
    Best Response
    You've already chosen the best response.
    Medals 0

    @hartnn

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

    seems correct.

    • one year ago
  46. Dido525
    Best Response
    You've already chosen the best response.
    Medals 0

    Okay :D . Thanks!

    • 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.