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Step 3. Determine what operations to be used. Using the formula n( A UB) = n(A) + n(B) - n A n B). then, n(ANB) = n(A) + n( B) - n( A UB) n(ANB) = 20 + 28 - 36 nANB ) = 48 - 36 n( AN B) = 12 Pls po help​

Step 3 Determine What Operations To Be Used Using The Formula N A UB NA NB N A N B Then NANB NA N B N A UB NANB 20 28 36 NANB 48 36 N AN B 12 Pls Po Help class=