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MathsMediumMCQ2019 · 09 Apr Shift 1

Q76.If the function f : R −{1, −1} →A defined by f(x) = x2 , is surjective, then A is equal to 1−x2 (1) [0, ∞) (2) R −{−1} (3) R −[−1, 0) (4) R −(−1, 0)

What This Question Tests

This question requires finding the range of a rational function and then using the definition of a surjective function (where the range equals the codomain A) to determine the set A.

Concepts Tested

Domain and Range of a functionSurjective function definition

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