Solve the integral_ (6+3cos(x))dx by using : a) the Trapezoidal Rule with step size h= n/2 b) the 3 points Gauss-Legendre integration method Calculate absolute relative true percentage errors |E for both methods (true value is 12.4248).

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Q: Solve the integral_ (6+3 cos(x))dxr by using: a) the Trapezoidal Rule with step size h= n/2 b) the 3…

A: Given, ∫abf(x)dx=∫0π26+3cos(x)dx Here, f(x)=6+3cos(x) a,b=0,π2       h=π2…

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