2) f(x)dx≈ 0.5 by using Simpson's rule with h = 0.5 then b = A 1.5 B2 C 1 D 2.5 3) For the function f(x) = 2x the two-point formula to approximate the first derivative of f at xo is f'(x0) = 2x0/h then h= A) 1 B 3 C) 2 D 4 4)If u = -[a 2 -1 3 b], |lu|| 2 = 8, ab = 25 then (a + b)² = A 25 B 100 C 75 D 50 5) Suppose that f(0.75) = f(0.25) = ß if the composite trapezoidal rule with n=2 gives the value 4 for ff(x) dx and gives the value 3 with n=4 , then ß = A4 B 1 C 3 D 2