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College Algebra
Properties
14
Mathematics
Undergraduate 1
08/30/2012

Additional Mathematics Flashcards

 


 

Cards

Term
Distributive Property
Definition
2x + 3x = (2+3)x is a consequence of what property?
Term
Rational Numbers
Definition
Numbers that have decimals which either terminate or are nonterminating with a repeating block of digits
Term
Commutative Properties
Definition

3 + 5 = 8

5 + 3 = 8

3 + 5 = 5 + 3

 

2 • 3 = 6

3 • 2 = 6

2 • 3 = 3 • 2

 

These equations are a consequence of what properties?

 

Term
Associative Properties
Definition

2 + (3 + 4) = 2 + 7 = 9

(2 + 3) + 4 = 5 + 4 = 9

2 + (3 + 4) = (2 + 3) + 4

 

2 • (3 • 4) = 2 • 12 = 24

(2 • 3) • 4 = 6 • 4 = 24

2 • (3 • 4) = (2 • 3) • 4

 

The way we add or multiply real numbers will not affect the final results. This are the properties of ____

Term

Identity Properties

 

0 = Additive Identity

1 = Multiplicative Identity

Definition

0 + a = a + 0 = a


a • 1 = 1 • a = a

Term

Additive Inverse Property

 

Additive Inverse of a

Definition

a + (-a) = -a + a = 0

 

For every real number a, there is a real number -a, called the _____

Term

Multiplicative Inverse Property

 

Multiplicative Inverse, AKA reciprocal

Definition

a • 1⁄a = 1⁄aa = 1 if a = 0

 

For every non zero real number a, there is a real number 1⁄a, called the ______, AKA _______

Term
Multiplication by Zero
Definition
a • 0 = 0
Term
Division Properties
Definition
0⁄a = 0     a⁄a = 1 if a =/= 0
Term
Rules of Signs
Definition

a(-b) = -(ab)

 

-(-a) = a

 

(-a)b = -(ab)

 

(-a)(-b) = ab

                          

a⁄-b = -a⁄b = - a⁄b

 

-a⁄-b = a⁄b

Term

Intersection of sets- ∩

 

a ∩ b = {1, 4, 6}

 

a = {1, 3, 4, 5, 6,}

 

b = {1, 2, 4, 6,

Definition

The set consisting of elements belonging to both a and b

 

a = {1, 3, 4, 5, 6,}

 

b = {1, 2, 4, 6,

Term

Union- a set of elements belonging to sets a, b, or both

 

a U b = {1, 2, 3, 4, 5, 6}

 

a = {1, 3, 4, 5, 6,}

 

b = {1, 2, 4, 6,

Definition

a set of elements belonging to sets a, b, or both

 

 

 

a = {1, 3, 4, 5, 6,}

 

 

 

b = {1, 2, 4, 6,

 

Term

Ā

All elements in the Universal Set not appearing in Set a

Definition
Complement of a set
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