Which one of the following is NOT a valid identity? O (A) (x y) z =x e (y ez) O (B) (x+ y) z = x (y+ z) O (C) x y = x+y, if xy = 0 O (D) xey = (xy+x'y')' Show Answer

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A:

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A: solution:

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A: Answer the above question are as follows

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Q: r), by filling mns one at a tir

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A: Answer the above question are as follows