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MathsMediumMCQ2012 · 07 May Online

Q79.The range of the function f(x) = 1+|x|x , x ∈R, is (1) R (2) (−1, 1) (3) R −{0} (4) [−1, 1]

What This Question Tests

This question assesses the ability to determine the range of a function involving an absolute value by considering different cases for the input variable x.

Concepts Tested

Range of a functionAbsolute value functionPiecewise functions

Formulas Used

f(x) = x/|x| for x ≠ 0

Definition of |x|

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