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二项式定理与乘法公式、概率等知识紧密相关.然而,该知识点题型较多,解题方法也较多,掌握几种典型的解题方法可以降低解题难度,提高解题的速度和准确性.笔者通过研究高考中所涉及到的二项式定理知识,发现二项式展开式的性质、二项式中特定项的求取、参数值的求取、系数和差的求取等是重点考察的内容.一、二项式定理二项式定理对两个数之和整数次幂的展开项进行分析,给出了特定形式的恒等式.其基本公式为:
The binomial theorem is closely related to multiplication formulas, probabilities, etc. However, this knowledge has more question types and more solution methods, and mastering several typical methods of solving problems can reduce the difficulty of solving problems and increase the speed of solving problems And accuracy.According to the knowledge of binomial theorem involved in college entrance examination, the author finds out the nature of the binomial expansion, the calculation of the specific term in the binomial, the calculation of the parameter value, the coefficient and the difference Etc .. First, the binomial theorem The binomial theorem analyzes the expansion terms of the sum of two numbers and the integer power, gives the specific form of identity.The basic formula is: