Sets and
Subsets
ϵ
ϵ
SET-BUILDER
SET-BUILDER FORM
ROSTER FORM
Set E consists of
the vowels of
the English
alphabet
E = {a,e,i,o,u}
Set G consists of
all counting
numbers
G = {1,2,3,4,5, … }
SET-BUILDER FORM
ROSTER FORM
H = {x▐ x is an odd
number}
H = {1,3,5,7,9, …}
G = {x▐ x is a
symbol of
fundamental
operation}
G = {+, -, x, ÷ }
BOOK ACTIVITY
Mental Math
Page 7
A. 1-5
Written Math
Page 7
A. 21-25
SET-BUILDER FORM
Set A consists
of the distinct
letters of the
word
PHILLIPINES
Set C consists of
the days of the
week
ROSTER FORM
A = {P,H,I,L,N,E,S}
C = {Monday,
Tuesday,
Wednesday,
Thursday, Friday}
SET-BUILDER FORM
ROSTER FORM
A = {x▐ x is a
primary color}
A = {red,yellow,blue}
C = {x▐ x is the
first 4 planets
near the sun}
C = {Mercury,
Venus, Earth,
Mars }
1. A = {1}
Subsets:
{ }, {1}
2. B = {1,2}
Subsets:
{ }, {1}, {2}, {1,2}
3. C = {a,b,c}
Subsets:
{ }, {a}, {b}, {c}
{a,b}, {a,c},{b,c},
{a,b,c}
4. D = {1,2,3,4}
Subsets:
{ }, {1}, {2}, {3}
{4}, {1,2}, {1,3}, {1,4},
{2,3}, {2,4}
{3,4}, {1,2,3}, {1,24},
{2,3,4}, {1,2,3,4}
Formula:
n
Ns= 2
Where:
Ns - number of subsets
n - number of elements
BOOK ACTIVITY
Mental Math
Page
Written Math
Page