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已知等差数列{an}中,a1=2,an<an+1,a1,a2,a4成等比数列,则...
已知等差数列{an}中,a1=2,an<an+1,a1,a2,a4成等比数列,则an= .
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设P为双曲线
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A.
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C.
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D.
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有一解三角形的题,因纸张破损有一个条件不清,具体如下:在△ABC中,已知
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C.
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或
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D.以上答案都不对
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函数
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的图象的大致形状是( )
A.
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B.
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C.
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D.
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