As in...
http://www.mathhelpforum.com/math-he...te-159304.html
...You start with the general formula...
(1)
... and because for ...
(2)
... combining (1) and (2) You have...
(3)
Kind regards
As in...
http://www.mathhelpforum.com/math-he...te-159304.html
...You start with the general formula...
(1)
... and because for ...
(2)
... combining (1) and (2) You have...
(3)
Kind regards