Chapter 1 Intermediate Algebra Class notes

Chapter 1 : review of real numbers


>
-
Section 1 2
. :
Symbols and sets of numbers ·




Real Numbers

⑪ - &


Irrational number Rational number
T ,
= , 0000
0
22, 3 14
.



:
-8
3
= -2 .
-1 . 34 , Zero
↓... etc

I 2
.




integer
=0 non
integer --- a




(fractions that give decimals ( 21 =
3 ,
0 ,
7
7




L -whole
negative number
number

-
O to -1 o to ↳




L Y

Natural number Zero

1 to a




example :

=
I 3 Rational integer when Natural n
, ,




2
8 = 5 pirational
-

, 1//d I/II
~ ~

I-natural number : ↑
ES & I
~ ~
2-whole number :O ~E, 2 4

~ - ~
3-Integers ·
·
⑧
9
Es C
I
~ ~ ~ ~ ~ ~
-17
1-rational number : S1 2 45 , 4 3
I 4 5 2
-
.
-0 .

0
.
,


Vo
.
, ,
I ,, ,

,


~
5 Irrational number 8 To
-, 2π

, I/IIIIIIII

I-natural number
2 whole number _




:
3-Integers : ~~-~
-5 ~. O &




I-rational number 3
I
-




7
~
~0
O
,
~
2 1 .
&
:
~
57.
,i
Irrational number:
-
is
5 it
,