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Exercise 5.4 in Engineering Mathematics book

2.Write Boolean expressions for the output from the devices shown in Figure 5.21.

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3.Design electronic devices which produce the following outputs:







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5.Use truth tables to verify that the following pairs of expressions are logically equivalent:



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7. Simplify the following Boolean expressions using the laws of Boolean algebra:



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10.Derive Boolean expressions and truth tables for the circuits shown in Figure 5.22.


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11.Simplify the following Boolean expressions using Boolean algebra:


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12.The truth values of the Boolean expression, X, are given in the following tables. Write X in disjunctive normal form. 
Use the laws of Boolean algebra to simplify your expressions.
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