Let f(x) = x, g(x) = 1/x and h(x) = f(x) g(x). Then, h(x) = 1 for A. – InterviewSolution

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Let f(x) = x, g(x) = 1/x and h(x) = f(x) g(x). Then, h(x) = 1 for A. x ∈ R B. x ∈ Q C. x ∈ R – Q D. x ∈ R, x ≠ 0

Answer»

Option : (D)

f(x) = x, g(x) = 1/x;

h(x) = f(x) g(x)

h(x) = 1

f(x)g(x) = 1

= x(\(\frac{1}{x}\))

x ≠ 0

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