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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 _compute_term_3(self, C, rrup, mag):
 """ This computes the third term in equation 2, page 2. """

        return (C['a3'] *
                np.log10(rrup + C['a4'] * np.power(10, C['a5'] * mag)))