观察下列三行数:-2,4,-8,16,-32,64,… -1,5,-7,17,-31,65,… 2,-4,8,-16,3
观察下列三行数:-2,4,-8,16,-32,64,… -1,5,-7,17,-31,65,… 2,-4,8,-16,3
观察下面三行数:①-2,4,-8,16,-32,64……
观察下列三行数:-1,2,-4,8,-16,32,…; ①-2,4,-8,16,-32,64,…;
观察下列三行数:-1,2,-4,8,-16,32,… (1)0,3,-3.9,-15,33,… (2)-2,4,-8,1
请你认真观察下列三行数:-1,2,-3,4,-5,…… 1,4,9,16,25,…… 0,3,8,15,24,……
观察下列三行数:-1 2 -3 4 -5 … 1 4 9 16 25 … 0 3 8 15 24 … 格式工整,
观察下列三行数:第一行:-1,2,-3,4,-5…… 第二行:1,4,9,16,25…… 第三行:0,3,8,15,24
观察下列三行数第一行1,-2,3,-4,5,......第二行1,4,9,16,25,......第三行-1,2,7,1
观察下列三行数:2,-4,8,-16,32,-64,.;第一行 4,-2,10,-14,34,-62,.;第二行
观察下列三行数①1,4,9,16,25,②2,5,10,17,26,[3]1,7,17,31,49.规律是甚么
观察下面三行数:(1) -1,2,-4,8,-16,32 ...(2) -2,4,-8,16,-32,64 ...(3)
观察下列三行数① 1,-2,4,-8,16,-32,.② 2,-4,8,-16,32,-64,.③ 4,-2,10,-1