Consider the function f: R--> R where 𝑐1 , 𝑐2 ∈ ℝ If 𝑓 is continuous at π‘₯…

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Consider the function f: R--> R

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where 𝑐1 , 𝑐2 ∈ ℝ
If 𝑓 is continuous at π‘₯ = 0, then 𝑐1 + 𝑐2 = _________.

Answer: 3 β€” For x ≀ 0, f(x) = 3, so f(0) = 3 and the left-hand limit at 0 is 3. For x > 0, f(x) = c₁eΛ£ - cβ‚‚ ln(1/x). As x β†’ 0+, ln(1/x) β†’ ∞. For the right-hand limit to…

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Correct answer: 3

For x ≀ 0, f(x) = 3, so f(0) = 3 and the left-hand limit at 0 is 3. For x > 0, f(x) = c₁eΛ£ - cβ‚‚ ln(1/x). As x β†’ 0+, ln(1/x) β†’ ∞. For the right-hand limit to be finite, cβ‚‚ must be 0. Then the right-hand limit becomes c₁e⁰ = c₁. Continuity at x = 0 requires c₁ = 3. Therefore c₁ + cβ‚‚ = 3 + 0 = 3.

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