好奇怪的数学证明“证明1+2+4+8+……=-1”解:1+2+4+8+……=1+2(1+2+4+8+……) 设1+2+4+8……=x,可得 x=1+2x x=-1 可是无数个正数相加怎么会是负数呢?
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![好奇怪的数学证明“证明1+2+4+8+……=-1”解:1+2+4+8+……=1+2(1+2+4+8+……) 设1+2+4+8……=x,可得 x=1+2x x=-1 可是无数个正数相加怎么会是负数呢?](/uploads/image/z/13611688-16-8.jpg?t=%E5%A5%BD%E5%A5%87%E6%80%AA%E7%9A%84%E6%95%B0%E5%AD%A6%E8%AF%81%E6%98%8E%E2%80%9C%E8%AF%81%E6%98%8E1%2B2%2B4%2B8%2B%E2%80%A6%E2%80%A6%3D-1%E2%80%9D%E8%A7%A3%EF%BC%9A1%2B2%2B4%2B8%2B%E2%80%A6%E2%80%A6%3D1%2B2%EF%BC%881%2B2%2B4%2B8%2B%E2%80%A6%E2%80%A6%EF%BC%89+++%E8%AE%BE1%2B2%2B4%2B8%E2%80%A6%E2%80%A6%3Dx%2C%E5%8F%AF%E5%BE%97++++x%3D1%2B2x++++x%3D-1+%E5%8F%AF%E6%98%AF%E6%97%A0%E6%95%B0%E4%B8%AA%E6%AD%A3%E6%95%B0%E7%9B%B8%E5%8A%A0%E6%80%8E%E4%B9%88%E4%BC%9A%E6%98%AF%E8%B4%9F%E6%95%B0%E5%91%A2%3F)
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