Posted by Sam on Monday, May 21, 2012 at 11:58am.
In google type:
wolfram alpha
When you see lis of results click on:
Wolfram Alpha:Computational Knowledge Engine
When page be open in rectangle type:
derivative (5x^2+9x-7)^5
and click option =
After few secons you will see result.
Then clic option Show steps
Then type :
derivative Ln(e^x^3)
and click option =
and show steps