Post Number Seventeen

this week we reviewed for our exam, so i'll just go over stuff that i know and do not know as my blog.

Let's start this off on a good note and explain something i DO understand. Average value :)
The formula for average value is 1/b-a(definite integral)f(a)

For example, Find the average value of f(x) = x^2 on [0,5]

1/5-0 S from 0 to 5 x^2 dx
= 1/5 [1/3x^3]
=1/5[125/3 - 0] = 25/3

Now for something i still don't understand and never did: SUBSTITUTION.
help please?

I also understand rolles and mean value theorems, you just follow them and plug in :)

This may be sad, but i am having trouble finding critical numbers and absolute extrema, those kinds of problems. I need a slight review on this if anyone cares.

I know how to do RRAM and LRAM, but am still having trouble with MRAM and mostly TRAM..

One more thing i understand is volume by disks, so i'll explain that quickly.

Volume by disks is used only with solid objects. The formula used is pi definite integral [R(x)]^2 dx

This is pretty easy, everything is basically given to you, the only place i usually mess up is in the algebra itself.

Well i'm stressing about the exam but hey, what can i do?

Goodnight Everyone :)