等比数列(不同考查等比数列)
来源:学生作业帮 编辑:大师作文网作业帮 分类:数学作业 时间:2024/11/11 14:54:19
在正项等比数列中 a1a5+2倍的a3a5+a3a7=25 求a3+a5
解题思路: 利用等比中项计算
解题过程:
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最终答案:略
解题过程:
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最终答案:略