karush
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-aux.01 Venn diagram universal set U and sets A and B.
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Plato2
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This is $$B\cap A'$$View attachment 1176
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karush
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so I have $B\cup A'$
| (c) $\displaystyle\frac{n(B\cup A')}{n(U)}=\frac{35}{100}=\frac{7}{20}$ |
MarkFL
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karush said:
That is correct. :D