Re: Derivatives


"Jard" <James.Appleyard@xxxxxxxxxxxxxx> schreef in bericht
news:42664bd5$1_1@xxxxxxxxxxxxxxxxxxxxxxxxx
> thanks boi i forgot that, i usually right as 'dx/dy= ' , k is just a
> letter
> i used to annotate a constant that is the co-efficient of x.
>
> I really enjoy receiving insults over newsgroups, when im tring to help.
> if
> he calls me an ass he must be a right hard man.

I really enjoy when people overestimate themselves and give bad advice.
I wouldn't have used the word "ass" if you hadn't. Ok, let's drop this part
of the discussion.

Now, tell me how you come up with d[sin(kx)]/dx = k cos(kx) in an easier way
then using the chainrule
(which, in practice, can hardly be made any easier in my opinion)


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