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不等式恒成立问题是同学们较难理解和掌握的一个考点,以数列为载体的不等式恒成立问题的档次高、综合性强,是高考数学命题的热点和难点,通常作为试卷的压轴题出现。下面就数列不等式恒成立问题的解题策略作以阐述,以期与大家交流与探讨。策略一:数列是特殊的函数,因此可用函数思想解决数列不等式恒成立问题,但是由于数列图像是其对应函数图像上的一些孤立的点,因此用函数思想解决数列问题时应该特别
Inequality constancy problem is difficult for students to understand and master of a test center, the number of carriers as the inequality of the establishment of the problem of high grade, strong comprehensive, is the college entrance examination mathematical proposition hot and difficult, usually as a test of the finale problem. The following questions on the numerical inequalities set up a problem-solving strategy to elaborate, with a view to discuss and discuss with you. Strategy 1: The sequence is a special function, so we can use the function idea to solve the problem of the constant of the numerical inequality. However, because the sequence image is some isolated point on the corresponding function image, we should use the function idea to solve the sequence problem