Sunday, February 14, 2010

Post #26

OFF FOR THE ENTIRE WEEK..THANK GOODNESS!!!
&& Happy Valentines Day!
So this past week in calculus we started out reviewing everything we have problems with! THAT HELPED SOOOOO MUCH..i'm beginning to get some stuff now! =)
the rest of the week we worked on practice worsheets that may have been graded!

can someone explain how to do the integration problems on that worksheet..i knew a few but some where tricky and i didn't know how to start it.

can someone tell me all the RAM fomulas..like LRAM, RRAM, MRAM, & TRAM

what i finally understand is the chain rule:
ex: sin^2(x^2)...the derivative of this is
4xsin(x^2)cos(x^2)
ex: sec^2(2x^3-4x)...the derivative of this is
2(6x^2-4)[sec(2x^3-4x)tan(2x^3-4x)][sec(2x^3-4x)]
CRAZY I KNOW...but it's just taking the derivative of an exponent, then the derivative of the other part, then the derivative of that and simplifing

LN INTEGRATION..
when you look at an integral make sure to look at the bottom first...see if it's derivative is the top and if so then it's ln(bottom) PLUS C

remember:
POSITION--original
VELOCITY--1st derivative
ACCELERATION--2nd derivative
so if you have position and need velocity of acceleration you'll have to take the first or second derivative...HOWEVER..if you have velocity and need position, or if you have acceleration and need either velocity or position you'll have to integrate..
remember to take the derivative or integegrate however many steps down or up it is from what you have already

hope this helps...BE SAFE, and have a GREAT WEEK OFF!!!
~ElliE~

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