In Equations 8a and 8b, n can be any real number. Therefore, n in Equation 8b can be replaced by n-1, yielding: Multiplying both sides by Multiplying both sides of Equation 8a bj Carrying out the differentiation on the left side of Equation 10 causes this equation become: The left-most term can be subtracted from both sides. In addition, we will now consider only cases where n = 1, 2, 3, ... . Thus, nX), so all terms can be divided through by n, giving:
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