- #1
transgalactic
- 1,395
- 0
here is the question:
http://i44.tinypic.com/xe53tc.gif
here is the solution:
http://i43.tinypic.com/2nuokfq.gif
my first question regarding this whole thing is.
why when the doing the partial derivative by "r" we don't multiply by minus
the formula says (minus derivative)
but all they do is making a derivative without multiplying by minus?
http://i44.tinypic.com/xe53tc.gif
here is the solution:
http://i43.tinypic.com/2nuokfq.gif
my first question regarding this whole thing is.
why when the doing the partial derivative by "r" we don't multiply by minus
the formula says (minus derivative)
but all they do is making a derivative without multiplying by minus?
Last edited: