12+54+98+1716+3332+6564+129128.-数学

题目简介

12+54+98+1716+3332+6564+129128.-数学

题目详情

1
2
+
5
4
+
9
8
+
17
16
+
33
32
+
65
64
+
129
128
题型:解答题难度:中档来源:不详

答案

class="stub"1
2
+class="stub"5
4
+class="stub"9
8
+class="stub"17
16
+class="stub"33
32
+class="stub"65
64
+class="stub"129
128

=class="stub"1
2
+(1+class="stub"1
4
)+(1+class="stub"1
8
)+(1+class="stub"1
16
)+(1+class="stub"1
32
)+(1+class="stub"1
64
)+(1+class="stub"1
128
),
=6+(class="stub"1
2
+class="stub"1
4
+class="stub"1
8
+class="stub"1
16
+class="stub"1
32
+class="stub"1
64
+class="stub"1
128
),
=6+(1-class="stub"1
2
)+(class="stub"1
2
-class="stub"1
4
)+(class="stub"1
4
-class="stub"1
8
)+(class="stub"1
8
-class="stub"1
16
)+(class="stub"1
16
-class="stub"1
32
)+(class="stub"1
32
-class="stub"1
64
)+(class="stub"1
64
-class="stub"1
128
),
=6+1-class="stub"1
128

=6class="stub"127
128

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