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sets A and B, n(A U B) = 84, and n(A n B) = 12, and n(B) = 45. Find n(A). symbolic formatting help

sets A and B, n(A U B) = 84, and n(A n B) = 12, and n(B) = 45. Find n(A). symbolic formatting help

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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For sets A and B, n(A U B) = 84, and n(A n B) = 12, and n(B) = 45. Find n(A). symbolic formatting help
Transcribed Image Text:For sets A and B, n(A U B) = 84, and n(A n B) = 12, and n(B) = 45. Find n(A). symbolic formatting help
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