'Til We Meet Again: A Memoir of Love and War

'Til We Meet Again: A Memoir of Love and War

Matematika jika n(A-B)=65, n(B-A)=35 dan n(AuB)=135 ,maka n(AnB)=....

jika n(A-B)=65, n(B-A)=35 dan n(AuB)=135 ,maka n(AnB)=....

35

Penjelasan dengan langkah-langkah:

n(AuB) = n(A-B) + n(B-A) + n(AnB)

n(AnB)= n(AuB) - n(A-B) - n(B-A)

= 135 - 65 - 35

= 35

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