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Sagot :
Answer:
48
Step-by-step explanation:
2-6$83737463363+77#7#+#++;#+#73737363644646464672727282939
Answer:
10
Explanation:
n(U)= 50
n०(E)= 15
n०(F)= 20
number of (E U F) whole complement= 5
NOW,
n(U)= 15+20+5+n(E intersection F)
or, 50= 40+n(E intersection F)
.•. n( E intersection F) = 10
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