# Limits and derivatives.

• May 31st 2011, 07:03 AM
gobbajeezalus
Limits and derivatives.
Thanks so much!
https://img.skitch.com/20110531-nsii...m8tqeua8gc.jpg

The first one, I have no clue and showing the steps/solution would help me understand the material.

For the second one I have this...

https://img.skitch.com/20110531-1fgf...151cnph5a4.jpg

but am still stuck.

Thanks!!
• May 31st 2011, 07:18 AM
Prove It
1. Start by taking the first and second derivatives, then using the boundary conditions you have been given...
• May 31st 2011, 09:22 AM
Deveno
note that p(2) = 4a + 2b + c.

now, i'll bet you that when you differentiate p(x), you'll get an equation with only TWO variables when you find p'(2).

and then, when you find p"(x), maybe, just maybe, it will only involve ONE when you find p"(2).

but then, if you solve for that one variable, you can substitute in the equation you get for p'(2), and solve for another.

two variables down, and only 3 in p(2) = 3....shouldn't be too hard, then.....