Friday, August 28, 2009

post #2

Okay so the second week of calculus has past and it's getting better. I'm starting to understand derivatives alot more and both product and quotient rules. All the homework sheets have really helped me to understand the various types of complications one can come across in product and quotient rule problems. I have also learned that some of these problems are really ugly and that you can not cancel out everything if all the sides dont have something in common.


One problem I had trouble with was..y=ln(x(sqrt)x^2-1))..but thankfully mrs.robinson did it on the board and i got it. It's to messy to type it in this blog but the answer after its worked out is (2x^2-1)(x(sqrt.)x^2-1) all over (sqrt of x^2-1). But not everything was messy most of the natural logs were pretty easy. For example, ln2/3= ln^2-ln^3. So basically, its not that bad like i thought it would be. Thanks alot to milky who helped me to understand how to not be confused by all the numbers everywhere on some of the problems on homework. Oh, and listing the rules and stuff before you do the problem makes it so much easier. b-rob helped me alot when she recommended that because it really works for me. Just listing the simple stuff like the exponent rule, the inside exponent, and quotient rule makes it so much easier to work with! and also with a big problem, dont forget to work from the outside-in.

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