[very OT] Help! Calculus hurts me!

[Trevalon Moonleirion]

I know this is really off topic, but good god i've got no where else to go now.... so we're finding derivatives of stuff... what is the derivative of this little beauty, and what is some of the work involved?

To anyone who helps--you rock and thank you!

y= x(sinx*cosx)

(dy/dx)=?

 

[Bhaal]

When in doubt, chain rule.

x * cos(x) * sin(x)

cos(x) * sin(x) - x * sin^2(x) + x * cos^2(x)

I know the trig can be simplified, but I'll leave that up to you .

 

[Trevalon Moonleirion]

All hail the mighty Bhaal!

HEy wait a minute... I shouldn't do that... you're evi..... er...

Thank you very much. My brain doesn't function very well normally, and it functions even less at this hour!