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Which of the following expressions is in the sum-of-products form?(a) (A + B)(C + D)(b) (A * B)(C * D)(c) A* B *(CD)(d) A * B + C * DThis question was posed to me in unit test.My question is from K-Map Simplification in section Arithmetic Circuits of Digital Circuits |
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Answer» RIGHT CHOICE is (d) A * B + C * D The best I can explain: Sum of product means that it is the sum of all product terms. THUS, the number is multiplied FIRST and then it is added: A * B + C * D. |
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