Using the Second Partials Test Use the Second Partials Test to verify that the formulas
Chapter 13, Problem 41(choose chapter or problem)
Use the Second Partials Test to verify that the formulas for a and b given in Theorem 13.18 yield a minimum.
[Hint: Use the fact that \(n \sum_{i=1}^{n} x_{i}^{2} \geq\left(\sum_{i=1}^{n} x_{i}\right)^{2}\).]
Text Transcription:
n sum_{i = 1}^{n} x_{i}^{2} geq (sum_{i = 1}^{n} x_{i})^2
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