A) \[A=B\]
B) \[A=C\]
C) \[B=C\]
D) \[A\cap B=\phi \]
Correct Answer: C
Solution :
\[A\cup B=A\cup C\] \[\Rightarrow \] \[n(A\cup B)=n(A\cup C)\] \[\Rightarrow \] \[n(A)+n(B)-n(A\cap B)\] \[=n(A)+n(C)-n(A\cap C)\] \[n(B)=n(C)\]You need to login to perform this action.
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