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in Differential equations by (64.8k points)

Find the domain of f(x) = √([x] - 1) + √(3 - [x])

1 Answer

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by (63.5k points)
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Best answer

Let D1 :[x] –1 ≥ 0  [x] ≥ 1

⇒ x ≥ 1

Also, let D2 :3 – [x] ≥ 0

 [x]  3

 x < 3 + 1 = 4

Thus, Df = [1, 4)

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