4、某等差数列的第2项为-5,第6项与第4项的差为6,则这个数列的首项为 A. -11 B. -10 C. -8

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河南成教 / 高等数学

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4、某等差数列的第2项为-5,第6项与第4项的差为6,则这个数列的首项为

A. -11

B. -10

C. -8

D. -7

积分

高等数学

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