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Let f : (- ∞, a] → R defined by f(x) = x(x - 2).If the set of all real values of a for which f(x) is many-one is (ℓ, ∞), then fined the value of ℓ 
    Correct answer is '1'. Can you explain this answer?
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    Let f : (-∞, a]→R defined by f(x) = x(x - 2).If the set of ...
    Value of f(x) is least at x = 1
    ∴ f(x) is many one if a > 1
    ∴ a ∈ (1, ∞)
    ∴ ℓ = 1
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    Let f : (-∞, a]→R defined by f(x) = x(x - 2).If the set of all real values of a for which f(x) is many-one is (,∞), then fined the value ofCorrect answer is '1'. Can you explain this answer?
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