sandra scribe day!

Last class we worked on some slides about interpolation and extrapolation.
Then we worked on some sequences, we went into some small groups.

Arithmetic Sequence:
- Recursive Definition:
An ordered list of numbers generated by adding a value continuously.


{/EDIT} An arithmetic sequence is when you continue adding the same number over and over again. For example:
5, 10, 15, 20, 25...
That is adding five to the previous number.


And to find the equation of the numbers the formula is Y = ax + b, so it would be like, Y = 5x + 0 (used the sequence above for example).
If you're wonder how i got the zero, look at slide 8/13 for December 18th.
It's pretty much just subtracting 5 from 5 because a = the first term and you subtract 5 from the first term.

Since the sequence is just adding 5, the common difference is 5, because there's a difference of 5 in each of the numbers.

I hope this is enough =)


sorry guys, i have no idea what im doing =.=''


Next Scribe = Matthew

111708

i don't understand Trigonometry.

(why can't i comment on posts?)

09.04.2008 Applied Math

Today we learned/reviewed about trigonometry.

A 90 degree angle is called a right angle.
Any angle greater than the right angle(90 degrees) is called the obtuse angle.
Any angle smaller than the right angle is called the acute angle.

We reviewed how to find angles and sides using SOH CAH TOA.
SIN = opposite over hypotenuse
COS = adjacent over hypotenuse
TAN = opposite over adjacent

The hypotenuse(the longest side) is the opposite of the right angle.

All angles of a triangle equal to 180 degrees.
Example:


To find which angle belongs to which sides(usually the lower case letter), it's the opposite of the angle (usually uppercase letter).
Example:



Other material covered in class today was posted by Mr.K in the post below.

The next scribe belongs to : PAIGE!