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JAMB - Mathematics (2014 - No. 9)

If P = {1,2,3,4,5} and P \(\cup\) Q = {1,2,3,4,5,6,7}, list the elements in Q
{6}
{7}
{6,7}
{5,6}

解释

Q = (P \(\cup\) Q) - P
{6,7}

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