简便计算 (224+1/222)x1/223 1/128+1/64+1/32+...+1/4

学习 时间:2026-05-13 23:54:05 阅读:9993
简便计算 (224+1/222)x1/223 1/128+1/64+1/32+...+1/4

最佳回答

优雅的未来

坦率的百合

2026-05-13 23:54:05

(224+1/222)x1/223 =(223+1+1/222)x1/223 =(223+223/222)x1/223 =1+1/222=223/222; 1/128+1/64+1/32+。。。+1/4=1/128+2/128+4/128+8/128+16/128+32/128=(1+2+4+8+16+32)/128=63/128

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  • 光亮的煎饼
    回复
    2026-05-13 23:54:05

    (224+1/222)x1/223 =(223+1+1/222)x1/223 =(223+223/222)x1/223 =1+1/222=223/222; 1/128+1/64+1/32+。。。+1/4=1/128+2/128+4/128+8/128+16/128+32/128=(1+2+4+8+16+32)/128=63/128

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