Question: Find the least squares polynomial approximation of degree two to the functions and intervals in Exercise 1. In Exercise 1 a. f (x) = x2

Find the least squares polynomial approximation of degree two to the functions and intervals in Exercise 1.
In Exercise 1
a. f (x) = x2 + 3x + 2, [0, 1];
b. f (x) = x3, [0, 2];
c. f (x) = 1/x, [1, 3];
d. f (x) = ex , [0, 2];
e. f (x) = 1/2 cos x + 1/3 sin 2x, [0, 1];
f. f (x) = x ln x, [1, 3].

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