利用平方差计算:(1+1/2)(1+1/4)(1+1/16)(1+1/256)

问题描述:

利用平方差计算:(1+

1
2
)(1+
1
4
)(1+
1
16
)(1+
1
256

原式=2×(1-

1
2
)×(1+
1
2
)×(1+
1
4
)×(1+
1
16
)×(1+
1
256

=2×(1-
1
4
)×(1+
1
4
)×(1+
1
16
)×(1+
1
256

=2×(1-
1
16
)×(1+
1
16
)×(1+
1
256

=2×(1-
1
256
)×(1+
1
256

=2×(1-
1
65536

=2-
2
65536

=1
32766
32768