Question: (+ 10) Using the formulas: (1) AUB| = |A-B| + |A nB| + |BA| and (2) |B| = |AnB| + |B-A| (3) |A U

(+ 10) Using the formulas: (1) AUB| = |A-B| + |A nB| + |BA| and (2) |B| = |AnB| + |B-A| (3) |A U B| = |A | + |B|-|BA| a. If |A - BI = find | B| b. If |A| == 20 find |BA| 20 = |AUB | 70 and | An B | = ANS: |B| == 25 and | A UB | ANS: = 40 25

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