Homework Help: Differentiate

Posted by Kay on Tuesday, October 27, 2009 at 8:17pm.

Can someone please differentiate y = sin x / x for me?

What I did was put (sin x)(x)^-1 and used the product rule...

So for me it was (sin x)[-1(x)^-2] + [(x)^-1(cos x)]

Now as I'm looking at a similar homework problem I think my method may be wrong... If my method is wrong it looks like I don't really understand this too well. Help?

Differentiate - Marth, Tuesday, October 27, 2009 at 9:35pm
Your work is correct. There are often multiple ways to differentiate an expression.

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