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C.6

▄︻̷̿┻̿═━一 ~♥~Ahmad B.A~♥~

Penyelesaian:

S = {1,2,3,4,5,6,7,8,9,10}

A = {1,2,3,4}

B = {3,4,5,6}

A U B = {1,2,3,4,5,6}

n(AUB) = 6 (C)

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