What I learned about chapter 11

Waking up early mornings,
just to do this blog.
To tell you viewers,
what I learned overall.

Chapter 11 was a tough one,
just like the rest.
But yet I am still thankful,
and try to do my best.

More formulas to take in,
and knowledge is dished out.
Some people complain,
what's that all about.

Appreciate the knowledge,
that you are able to receive.
Because some people are given the lock,
but yet, they don't have the key.

We are able to open and close the door,
whenever we please.
Some people can come in,
but it's hard for them to leave.

It takes longer for others,
to endure this gift.
So be patient with them,
and don't throw a fit.

I am blessed to be here,
as we all should be.
Give thanks to him,
for the knowledge that was given to you and me.

More formulas to come,
and many more problems are almost here.
Take in all that you can,
because the end of the year is near.

Soon you'll be in a new place,
and many lessons you shall learn.
look at everything you do as math test,
and you'll have fewer concerns. :)

Formulas:
Chapter 11.1
x= rcosO, y=rsinO - concert to rectangular
r=(x^2+y^2) TanO= y/x- to convert to polar

11.2
Complex numbers:
rectangular z=x+y
polar z= rcosO+rsinOi
Abbreviated z= rcisO
11.3
(rcisO)^n= r^n cisnO - De Moivre's Theorem.