(13+16+112+124+148+196+1192+1384)×128.-数学

题目简介

(13+16+112+124+148+196+1192+1384)×128.-数学

题目详情

(
1
3
+
1
6
+
1
12
+
1
24
+
1
48
+
1
96
+
1
192
+
1
384
)×128
题型:解答题难度:中档来源:不详

答案

class="stub"1
3
+class="stub"1
6
+class="stub"1
12
+class="stub"1
24
+class="stub"1
48
+class="stub"1
96
+class="stub"1
192
+class="stub"1
384
)×128
=class="stub"1
3
×(1+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
+class="stub"1
128
-class="stub"1
128
)×128
=class="stub"1
3
×
(1+class="stub"1
2
×
2-class="stub"1
128
)×128
=class="stub"1
3
×(1+class="stub"127
128
)×128
=85.

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