(1)-(-2)^N
2,-4,8,-16,32,-64.(1)
9个回答
相关问题
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1+1?2+2?4+4?8+8?16+16?32+32 64+64 128+128 256+256 512+512 10
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64,64,32,8,1,( 64,64,32,8,1,( )( )里填什么?A,1/16B,1/8C,1/4D,1/2
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1/2+1/4+1/8+1/16+1/32+1/64简便运算=﹙1/2+1/4+1/8+1/16+1/32+1/64+1
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2 .-4.8 -16.32.-64.⑴ 3.-3.9.-15.33.-63 .⑵ 1 -2 4 -8 16 -32``
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观察:2,4,8,16,32,64…
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观察下面三行数 2,-4,8,-16,32,-64...① -1,2,-4,8,-16,32...② 3,-3,9,-1
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1+2+4+8+16+32+64.+1024+2056+4112
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1+2+4+8+16+32+64+128简便算法
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(1+2+4+8+16+32除64)×3+1=
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巧算1-(4/8-8/1)-(8/1-16/1)-(16/1-32/1)-(32/1-64/1)