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  • Let f : N → R be the function defined by f(x) = (2x-1)/2 and g : Q → R be another function defined by g(x) = x + 2 then, gof(3/2) is (a) 1

Let f : N \rightarrow R  be the function defined by f(x) = (2x-1)/2  and g : Q \rightarrow R be another function defined by g(x) = x + 2 then, gof(3/2) is

\\(a) 1 \\(b) - 1 \\(c) 7/2 \\(d) None of these \\

Answers (1)

(d)

Given that, f(x) = (2x-1)/2 \: \: and\: \: g(x) = x + 2 \\

Therefore, gof(x) = g[(f(x)] = f(x) + 2 = (2x-1)/2 = (2x+3)/2\\

Hence, gof(3/2) = 3 \\

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