a) Make logic circuit for the following Boolean expressions:
i). (x.y + z) + (x+z)ii). x.y'+ y.z'+z'x' + x .y
(4 Marks)
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Logic circuit for Boolean expressions: (i) (x.y + z) + (x+z)
(ii) x.y'+ y.z'+z'x' + x .y
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b) Find Boolean expression for the output of the following logic circuit given in the Figure a:
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Boolean expressions = 
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c) Write a superset for the following sets:
A = {1, 2, 3, 4, 9, 19}, B = {1, 2} and C {2, 5, 11}, D = {1, 3, 5}
Also tell whether set B is a subset of set C or not. (3 Marks)
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Set A is super set of set B because each element of set B is also an element of set A.
Therefor, 
Then set B is not subset of set C because each element of set B is not set C.
Therefor, 
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