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प्रश्न
The domain of the function f: R → R defined by f(x) =
उत्तर
Here x2 – 3x + 2 ≥ 0
⇒ (x – 1)(x – 2) ≥ 0
⇒ x ≤ 1 or x ≥ 2
Hence the domain of f =
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