Answer with Step-by-step explanation:
We have to prove that
is true for all sets A and B
Let
Then or
and or
Hence,
Conversely ,Let
Then x belongs to A and x does not belongs to B then
x belongs to A- B
Or x belongs to A and x belongs to B then x belongs to
Hence,
Therefore,
Answer:
7
Step-by-step explanation:
7^-1/7^-2=7
2becaude 10a -3 =7 colonial
Answer:
1 /8
Step-by-step explanation:
Given that :
Number of sections on spinner = (1,2,3,4,5,6,7,8) = 8
Number of 5's = 1
Recall :
Probability of event A = number required outcome / Total possible outcomes
P(5) = 1/8
Answer:
2x + 1 = 15
Step-by-step explanation: