Question

pls explain the answer clearly and writ the answer neatly................................................

Problem 10. It can be shown that if Xi, X2 and Y are sets, f : X1 → Y and g :X2→ Y are functions, and Xin X,-o, then f U g is a function X,U X2 → Y. 10(a) Give an example where X, X2 and Y are sets, f : X1 → Y and g : X2 → Y are functions and fug is not a function. 10(b) Give an example where X, X2 and Y are sets, f : Xi → Y and g : X2 → Y are functions, Xi n X2 = ø, and f U g is still a function.

Answer 1

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2. 13
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