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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _g_3(self):
 """omega3 < omega < omega4"""

        # return 3 * (1.0 - self._n_3()) / (self._vertices_omegas[3] - self._omega)
        return (3 * self._f(1, 3) * self._f(2, 3) /
                (self._vertices_omegas[3] - self._vertices_omegas[0]))