(March 12, 2016 at 6:56 am)ignoramus Wrote: You're welcome Drich.Teacher: So y = r cubed over 3. And if you determine the rate of change in this curve correctly, I think you'll be pleasantly surprised. Teacher: Don't you get it, Bart? Derivative dy = 3 r squared dr over 3, or r squared dr, or r dr r.
dy/dr = r2 into dy = rdrr...