Prove that f: R→ R is continuous. 2. Suppose that the function f : [0, 1] → R is continuous and that f(x) ≥ 2 if0 ≤ x < 1. Show that f(1) ≥ 2.

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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**1.** Prove that \( f: \mathbb{R} \to \mathbb{R} \) is continuous.

**2.** Suppose that the function \( f: [0, 1] \to \mathbb{R} \) is continuous and that \( f(x) \geq 2 \) if \( 0 \leq x < 1 \). Show that \( f(1) \geq 2 \).
Transcribed Image Text:**1.** Prove that \( f: \mathbb{R} \to \mathbb{R} \) is continuous. **2.** Suppose that the function \( f: [0, 1] \to \mathbb{R} \) is continuous and that \( f(x) \geq 2 \) if \( 0 \leq x < 1 \). Show that \( f(1) \geq 2 \).
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