March 25th, 2010

Hey Everybody,

I hope you all enjoyed your math class today and that there were many breakthroughs!

Well, to recap....

First we completed a daily quiz, number 20. The quiz involved simplifying equations using identities.

Next, we went over section 3.2 by doing an example:

2tan^2x = (1/csc x - 1) - (1/csc x + 1)

one way to solve an equation involving the subtraction of two equations is by multiplying the denominators to either side like so:

[1 (csc x +1) / csc x - 1 (csc x + 1)] - [1 (csc x - 1) /csc x +1 (csc x - 1)

continue to solve:

[(csc x + 1) - (csc x -1)] / csc^2 x - 1

= csc x + 1 - csc x +1 / csc^2 x - 1

= 2 / csc^2 x - 1

= 2 / cot^2 x

= 2 tan^2 x

Finally, we all ended class by dividing up into small groups to discuss our homework, and work through the problems we found difficult. During this time, Jojo walked around and helped those of us that still had questions.

Although many people found the work frustrating, Jojo helped us work through and understand the problems better, and we were very grateful for that and proud that we understood the material much better.

Don't forget to study for the test coming up next Friday, and also catch up on homework, flickr, corrections and contributions on the blog etc.

You can do it!!!

Good Luck,

Emma :)

PS. the next scribe poster is....Brian!!