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Estimate the integral of f(x)=x^3+4x^2+x using Gauss quadrature in the interval [1,4] when n=2. Explain the...

Estimate the integral of f(x)=x^3+4x^2+x using Gauss quadrature in the interval [1,4] when n=2.

Explain the difference bertwen this method using the interval range [1,4] and the interval range [-1,1].

Represent graphically.
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