求证:1-1/2+1/4-1/8+...+(-1/2)^n-1=(2/3)[1-(-1/2)^n)](n是整数)用数学归纳法证明
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![求证:1-1/2+1/4-1/8+...+(-1/2)^n-1=(2/3)[1-(-1/2)^n)](n是整数)用数学归纳法证明](/uploads/image/z/6862815-63-5.jpg?t=%E6%B1%82%E8%AF%81%EF%BC%9A1-1%2F2%2B1%2F4-1%2F8%2B...%2B%28-1%2F2%29%5En-1%3D%282%2F3%29%5B1-%28-1%2F2%29%5En%29%5D%EF%BC%88n%E6%98%AF%E6%95%B4%E6%95%B0%EF%BC%89%E7%94%A8%E6%95%B0%E5%AD%A6%E5%BD%92%E7%BA%B3%E6%B3%95%E8%AF%81%E6%98%8E)
求证:1-1/2+1/4-1/8+...+(-1/2)^n-1=(2/3)[1-(-1/2)^n)](n是整数)用数学归纳法证明
求证:1-1/2+1/4-1/8+...+(-1/2)^n-1=(2/3)[1-(-1/2)^n)](n是整数)用数学归纳法证明
求证:1-1/2+1/4-1/8+...+(-1/2)^n-1=(2/3)[1-(-1/2)^n)](n是整数)用数学归纳法证明