Can you check if i did this correct

Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
ChapterP: Preliminary Concepts
SectionP.CT: Test
Problem 10CT: Statement P and Q are true while R is a false statement. Classify as true or false:...
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Can you check if i did this correct
Let A and B be sets with cardinal numbers, n(A) = a and n(B) = b, respectively. Decide whether the statement is true or
false.
8) n(A v B) = n(A) – n(B)
A) True
A- (0
Iswa pl (A
B) False
n (AuB) =a-b
A= {9,5,4 ,w,Y} = A=5
a -b = 5 -4 = |
%3D
B- 4
%3D
(AUB)= {9, 5,u,Yiw,2} =6
Transcribed Image Text:Let A and B be sets with cardinal numbers, n(A) = a and n(B) = b, respectively. Decide whether the statement is true or false. 8) n(A v B) = n(A) – n(B) A) True A- (0 Iswa pl (A B) False n (AuB) =a-b A= {9,5,4 ,w,Y} = A=5 a -b = 5 -4 = | %3D B- 4 %3D (AUB)= {9, 5,u,Yiw,2} =6
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