If (A union B) = (A …
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Posted by Yash Goswami????? 6 years, 7 months ago
- 2 answers
Gaurav Seth 6 years, 7 months ago
n(A U B) = n(A U C) …….1
n(A ∩ B) = n(A ∩ C)………2
Expanding equation 1
n(A) + n(B) — n( A ∩ B) = n(A) + n(C) — n(A∩C)…3
Substituting 2 in equation 3
n(A) + n(B) — n(A∩B) = n(A) + n(C) — n(A∩ B)
Therefore n(B) = n(C)
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Yash Goswami????? 6 years, 7 months ago
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