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1.高考原题再现例1(2009年高考山东卷·理20)等比数列{an}的在前函数n项和为,已知且对任意的均为,常点数)的图均象上.
1. Reproducing the original college entrance examination example 1 (2009 college entrance examination Shandong Juan Li 20) equal number series {an} before the function n term is, and known for all are arbitrary, the number of points) are similar .