(1+1/2)(1+1/2²)(1+1/2³)(1+1/2的四次幂)(1+1/ 2的八次幂)+1/2的15次幂
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![(1+1/2)(1+1/2²)(1+1/2³)(1+1/2的四次幂)(1+1/ 2的八次幂)+1/2的15次幂](/uploads/image/z/2118670-70-0.jpg?t=%EF%BC%881%2B1%2F2%29%281%2B1%2F2%26%23178%3B%EF%BC%89%EF%BC%881%2B1%2F2%26%23179%3B%EF%BC%89%EF%BC%881%2B1%2F2%E7%9A%84%E5%9B%9B%E6%AC%A1%E5%B9%82%EF%BC%89%EF%BC%881%2B1%2F+2%E7%9A%84%E5%85%AB%E6%AC%A1%E5%B9%82%EF%BC%89%2B1%2F2%E7%9A%8415%E6%AC%A1%E5%B9%82)
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(1+1/2)(1+1/2²)(1+1/2³)(1+1/2的四次幂)(1+1/ 2的八次幂)+1/2的15次幂
(1+1/2)(1+1/2²)(1+1/2³)(1+1/2的四次幂)(1+1/ 2的八次幂)+1/2的15次幂
(1+1/2)(1+1/2²)(1+1/2³)(1+1/2的四次幂)(1+1/ 2的八次幂)+1/2的15次幂
(1+1/2)(1+1/2²)(1+1/2³)(1+1/2的四次幂)(1+1/ 2的八次幂)+1/2的15次幂
=2(1-1/2)(1+1/2)(1+1/2^2)(1+1/2^4)(1+1/2^8)+1/2^15
=2*(1-1/2^16)+1/2^15
=2-1/2^15+1/2^15
=2