Find the constant numbers u, v, s, t (s<t) such that \int_{\minus{}1}^1 f(x)\ dx\equal{}uf(s)\plus{}vf(t) holds for any polynomials f(x)\equal{}ax^3\plus{}bx^2\plus{}cx\plus{}d with the degree of 3 or less than. calculusintegrationalgebrapolynomialcalculus computations