4. Let S(h) denote the composite Simpson's rule approximation of | f(x) dx with step size h, and suppose that f(0) = 1, f(0.25) = 5, f(0.5) = 6, ƒ(0.75) f(1) = –1. -0.5, and а) Find the approximations S(0.5) and S(0.25).

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