JEE MATHEMATICS MCQ: FUNCTIONS

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Let

f(x)=x, g(x)=\frac{1}{x}

and

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

. Then,

h(x)=1

if and only if

View answer and explanation

Correct option: D

x

is a non-zero real number

Option D is correct because the function is only equal to 1 when x is a non-zero real number, as g(x) is undefined at x=0.

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