4. If n(€) = 58, n(A) = 32, n(B) = 20 and n(A U B)' = 18, find n(A U(reverse) B).
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Answer:
40494
w9435
946535
626fj/-- /1 91416717
* 6+*+64172
616716*9+9*
+6164649565-
/
Step-by-step explanation:
664+646+71674
1341341%%51998
-5616%41919
-6713
17716%7-67
716643-7615
6461%7
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