原式=1+2的-1次方+2的-2次方+······+2的-2009次方+2的-2010次方,
2倍原式=2+2的0次方+2的-1次方+······+2的-2008次方+2的-2009次方,
2倍原式=2+1+2的-1次方+······+2的-2008次方+2的-2009次方
2倍原式-原式=(2+(1+2的-1次方+······+2的-2008次方+2的-2009次方))-(1+2的-1次方+2的-2次方+······+2的-2009次方+2的-2010次方)
原式=2-2的-2010次方
原式=1+2的-1次方+2的-2次方+······+2的-2009次方+2的-2010次方,
2倍原式=2+2的0次方+2的-1次方+······+2的-2008次方+2的-2009次方,
2倍原式=2+1+2的-1次方+······+2的-2008次方+2的-2009次方
2倍原式-原式=(2+(1+2的-1次方+······+2的-2008次方+2的-2009次方))-(1+2的-1次方+2的-2次方+······+2的-2009次方+2的-2010次方)
原式=2-2的-2010次方