Q. 3 C4.0( 10 Votes )

Find the domain a

Answer :


We know the square of a real number is never negative.


Clearly, f(x) takes real values only when x – 1 ≥ 0


x ≥ 1


x [1, ∞)


Thus, domain of f = [1, ∞)


When x ≥ 1, we have x – 1 ≥ 0


Hence,


f(x) [0, ∞)


Thus, range of f = [0, ∞)


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