2. a) Use Romberg Integration to approximate R3,3 for the integral ∫[3 to 3.5] x/√(x^2-4) dx b) Romberg Integration for approximating ∫[0 to 1] f(x)dx gives R1,1 = 4 and R2,2 = 5. Find f(1/2) 3. Use Gaussian Quadrature Integration with n=3 to approximate the following integrals a) ∫[1 to 1.6] 2x/(x^2-4) dx b) ∫[0 to π/4] x^2 sin x dx