在等比数列{an}中,对任意n∈N+,an>0,a1+a2=1,a3+a4=9,则a4+a5等于()锅子煮小米,你的做法好象是对的,但没有两个答案啊
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![在等比数列{an}中,对任意n∈N+,an>0,a1+a2=1,a3+a4=9,则a4+a5等于()锅子煮小米,你的做法好象是对的,但没有两个答案啊](/uploads/image/z/5916767-23-7.jpg?t=%E5%9C%A8%E7%AD%89%E6%AF%94%E6%95%B0%E5%88%97%7Ban%7D%E4%B8%AD%2C%E5%AF%B9%E4%BB%BB%E6%84%8Fn%E2%88%88N%EF%BC%8B%2Can%EF%BC%9E0%2Ca1%2Ba2%3D1%2Ca3%2Ba4%3D9%2C%E5%88%99a4%2Ba5%E7%AD%89%E4%BA%8E%EF%BC%88%EF%BC%89%E9%94%85%E5%AD%90%E7%85%AE%E5%B0%8F%E7%B1%B3%2C%E4%BD%A0%E7%9A%84%E5%81%9A%E6%B3%95%E5%A5%BD%E8%B1%A1%E6%98%AF%E5%AF%B9%E7%9A%84%2C%E4%BD%86%E6%B2%A1%E6%9C%89%E4%B8%A4%E4%B8%AA%E7%AD%94%E6%A1%88%E5%95%8A)
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