Find the Derivative of the given Function

apcalckid76
Messages
3
Reaction score
0
1.Sketch the Derivatie of the given Function



2. Help me find the derivative of the function



3. I said that the derivative will begin at the origin, then slope down vertically, then continute shortly horizontally, then go back up the "X" axis and continue horizonally.

http://imageshack.us/a/img717/7821/img20121020142636.jpg

Homework Statement



THanksss

Homework Equations





The Attempt at a Solution

 

Attachments

  • IMG_20121020_142636.jpg
    IMG_20121020_142636.jpg
    12.9 KB · Views: 424
Last edited by a moderator:
Physics news on Phys.org
welcome to pf!

hi apcalckid76! welcome to pf! :smile:
apcalckid76 said:
3. I said that the derivative will begin at the origin, then slope down vertically, then continute shortly horizontally, then go back up the "X" axis and continue horizonally.

nooo

try this part …

what does the graph of the derivative of just the slopey part in the middle look like?​
 
http://imageshack.us/a/img10/5516/img20121021084205.jpg



This is my answer...my physics teacher helped me solve it but I am not sure if its right or not.
 
Last edited by a moderator:
yes, that's right :smile:

the three parts of the original graph are straight,

so that means their derivatives (= the slopes) are constant,

so the graph of the derivative is three horizontal lines, at levels 0 minus-something and 0 again :wink:







:
 
THANK YOU! I really appreciate it Tim thanks!
 
There are two things I don't understand about this problem. First, when finding the nth root of a number, there should in theory be n solutions. However, the formula produces n+1 roots. Here is how. The first root is simply ##\left(r\right)^{\left(\frac{1}{n}\right)}##. Then you multiply this first root by n additional expressions given by the formula, as you go through k=0,1,...n-1. So you end up with n+1 roots, which cannot be correct. Let me illustrate what I mean. For this...
Back
Top