Activity No. 1
Direction/Instruction: Encircle the letter of the correct answer.
Given:
Let U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}
M= {4, 5, 6, 7, 8}
N= {6, 7, 8, 9}
P = {1, 2, 3, 4}
Find:
1. M U N
a. {4, 5, 6} b. {6, 8} c. {4, 5, 6, 7, 8, 9} d. { }
2.) M ᑎ P
a. {6,8} b. {4} c. {1,2,3,4,5,6,8} d. { }
3.) p'
a. {5,6,7,8,9,10} b. {1,2,3} c. {6,7,8,9} d. { }
4.) N U P
a. {1,2,6,7} b. {1,2,3,4,6,7,8,9} c. {5,10} d. { }
5.) M ᑎ N
a. {4,6,7} b. {5,6,7,8} c. {6,8} d. { }
6.) M'
a. {6,7,8,9} b. {1,2,3,4} c. {1,2,3,7,9,10} d. { }
7.) (M ᑎ P)'
a. {1,2,3,5,6,7,8,9,10} b. {1,2,3,4,5,6,8}
c. {1,2,3,4,5,6,7} d. { }
8.) M ᑎ N ᑎ P
a. {2,4,5} b. {4} c. {6} d. { }
9.) M ᑎ (N U P)
a. {4} b. {4,6,8} c. {4,5,6,8} d. { }
10.) M - P
a. {4,5,6,8} b. {5,6,8} c. {1,2,3,4,5,6,8} d.{ }
Answers & Comments
Answer:
1.) C
2.) B
3.) A
4.) B
5.) C
6.) C
7.) A
8.) D
9.) B
10.) B
Step by step explanation:
Let U: 1,2,3,4,5,6,7,8,9,10
1.) "U" example
Y=1,2,4,8
G=6,7,8,9,
Y U G = 1,2,3,4 + 5,6,8,9 = 1,2,3,4,5,6,8,9
So M U N
M=4,5,6,8
N=6,7,8,9
M + N = 4,5,6,8 + 6,7,8,9 = 4,5,6,7,8,9
2.) "ᑎ" example
A= 1, "3" ,4, "5"
M= 2, "3" , "5" ,9
A ᑎ M = (equal/same) = 3,5
So find the equal/same of M and P (MᑎP)
M=4,5,6,8
P=1,2,3,4
M doesn't have 1,2,3
P doesn't have 5,6,8 but
M and P have 4 so its {4}
3.) ' example
J=1,5,6,8
J' = put away the numbers that j has
= 2,3,4,7,9,10
So p'
P=1,2,3,4 Put away the numbers that p has = 5,6,7,8,9,10
4.) N U P
N=6,7,8,9
P=1,2,3,4
N + P = 1,2,3,4,6,7,8,9
5.) M ᑎ N
M = 4,5,6,8
N = 6,7,8,9
M don't have 7,9 N don't have 4,5
But M and N have 6,8
= 6,8
6.) M'
M=4,5,6,8
M' = put away the numbers that M has
= 1,2,3,7,9,10
7.) (M ᑎ P)'
you know, parentheses first!
first find the equal/same of M and P
M= 4,5,6,8
P= 1,2,3,4
and its 4 so put away 4
= 1,2,3,5,6,7,8,9,10
8.) M ᑎ N ᑎ P
find the equal/same of M, N, and P
M = 4,5,6,8
N = 6,7,8,9
P = 1,2,3,4
ops! I didn't see the equal/same of M, N, and P so, don't put zero put this "{ }"
9.) M ᑎ (N U P)
parentheses first!
N=6,7,8,9
P=1,2,3,4
N + P = 1,2,3,4,6,7,8,9
now, find the equal/same of M and NP
NP= 1,2,3,4,6,7,8,9
M=4,5,6,8
M doesn't have 1,2,3,7,9
NP doesn't have 5 but
M and NP have 4,6,8 so
= 4,6,8
10.) M - P
M=4,5,6,8
P=1,2,3,4
put only the number that M has and put away the equal/same of M and P (its 4)
= 5,6,8
or P - M
put only the number that P has and put away the equal/same of P & M (its 4 too)
= 1,2,3
hope it helps appreciate it :)
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