Question: Derive an error bound in Prob. 9 from (5). Data from Prob. 9 Calculate the Lagrange polynomial p 2 (x) for the 5S-values f(0.25) =

Derive an error bound in Prob. 9 from (5).

Data from Prob. 9

Calculate the Lagrange polynomial p₂(x) for the 5S-values f(0.25) = 0.27633, f(0.5) = 0.52050, f(1.0) = 0.84270 and from p₂(x) an approximation of f(0.75) (= 0.71116).

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