(1-2-132)-1(1-2-116)(1+2-116)(1+2-18)(1+2-14)(1+2-12)=()A.12(1-2-132)-1B.12(1-2-132)C.12D.(1-2-132)-

题目简介

(1-2-132)-1(1-2-116)(1+2-116)(1+2-18)(1+2-14)(1+2-12)=()A.12(1-2-132)-1B.12(1-2-132)C.12D.(1-2-132)-

题目详情

(1-2-
1
32
-1(1-2-
1
16
)(1+2-
1
16
)(1+2-
1
8
)(1+2-
1
4
)(1+2-
1
2
)=(  )
A.
1
2
(1-2-
1
32
-1
B.
1
2
(1-2-
1
32
C.
1
2
D.(1-2-
1
32
-1
题型:单选题难度:偏易来源:不详

答案

原式=(1-2-class="stub"1
32
)-1[(1-2-class="stub"1
16
)(1+2-class="stub"1
16
)](1+2-class="stub"1
8
)(1+2-class="stub"1
4
)(1+2-class="stub"1
2

=(1-2-class="stub"1
32
)-1(1-2-class="stub"1
8
)(1+2-class="stub"1
8
)(1+2-class="stub"1
4
)(1+2-class="stub"1
2

=(1-2-class="stub"1
32
)-1(1-2-class="stub"1
4
)(1+2-class="stub"1
4
)(1+2-class="stub"1
2

=(1-2-class="stub"1
32
)-1(1-2-class="stub"1
2
)(1+2-class="stub"1
2

=(1-2-class="stub"1
32
)-1(1-2-1)
=class="stub"1
2
(1-2-class="stub"1
32
)-1.
故选A.

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