Question

Derivatives

Answer 1

\[\frac{ x ^{3} }{ 9 } (3lnx-1)\]

Answer 2

i did product rule, \[\frac{ x ^{3} }{9}( \frac{ 3 }{ x }) + 3lnx-1 (\frac{ 3x ^{2} }{ 9 }\]

Answer 3

@zepdrix

Answer 4

why dont you split up it first...
and u do the first part with product rule and the another one u just differentiate it...

Answer 5

Hmmm yah that looks correct swin :o does the book say no good? Or you just checking your work?

Answer 6

well my teacher got 3lnx or something like that hahaha. i had a denominator...

Answer 7

Hmmm I think this is what you'll end up with if I did that correctly.
Your first step, taking the derivative looks good, it just can be simplified a bit, since you have some powers of x, and x's in the denominator :O