This blog is going to be about chapter eleven since we have a chapter test coming up this week. B-Rob also thrilled us by putting chapter 13 on this test.
Speaking of chapter 13, I will go over that before chapter eleven.
Sequences are a list of numbers.
Arithmetic - when you add the same number to every term.
Geometric - when you multiply by the same number for every term.
Ex. Is the following sequence arithmetic, geometric, or neither?
a. 28,32,36,40.... Arithmetic-add 4
b. 4,12,36,108.... Geometric-x3
c. 9,27/2,81/4.... Geometric-x3/2
d. 0,15,30,45.... Arithmetic-add 15
I will now go over section 11-3. This is a very simple section using DeMoivre's Theorem.
(rcisy)^n=r^ncisny
(3cis20)^5=3^5cis100=243cis100
(7cis14)^3=7^3cis42=343cis42
I thought section eleven one was pretty easy. I will have to study 11-2 the most for this test. Section 11-3 and all of chapter thirteen should be pretty easy. Now I have to memorize some formulas and ace this test.
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