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HiI will mark as brain list Please tell me answer of this question in easy way but Step-by-step explanation |
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Answer» Step-by-step explanation: hey i have no acess to intersect BUTTON so i wi use ∆ in PLACE of it SORRY about that your explanation :- we know that n(X U Y) = n(X) + n(Y) - n (X ∆ Y) So, 29 = 15 + n(B) -7 so n(B) =21 Hope it helps |
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