(1+1/2)×(1+1/2的2次方)×(1+1/2的4次方)×(1+1/2的8次方)
=(1-1/2)(1+1/2)×(1+1/2的2次方)×(1+1/2的4次方)×(1+1/2的8次方)/(1-1/2)
=(1-1/2的2次方)×(1+1/2的2次方)×(1+1/2的4次方)×(1+1/2的8次方)×2
=(1-1/2的4次方)×(1+1/2的4次方)×(1+1/2的8次方)×2
=(1-1/2的8次方)×(1+1/2的8次方)×2
=(1-1/2的16次方)×2
=2-1/2的15次方
=(1-1/2)(1+1/2)(1+1/2²)(1+1/2的4方)(1+1/2的8方)÷(1-1/2)
=(1-1/2²)(1+1/2²)(1+1/2的4方)(1+1/2的8方)ⅹ2
=2(1-1/2的16方)
=2-1/2的17方
(1+½)(1+½²)(1+½⁴)(1+½⁸)
=2·(1-½)(1+½)(1+½²)(1+½⁴)(1+½⁸)
=2·(1-½²)(1+½²)(1+½⁴)(1+½⁸)
=2·(1-½⁴)(1+½⁴)(1+½⁸)
=2·(1-½⁸)(1+½⁸)
=2·(1-½¹⁶)
=2-½¹⁵
=65535/32768