A-A+

(1-2-132)-1(1-2-116)(1+2-116)(1+2-18)(1+2-14)(

2022-08-15 14:06:10 问答库 阅读 206 次

问题详情

(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

)-1B.1

2

(1-2-1

32

)

C.1

2

D.(1-2-1

32

)-1

参考答案

原式=(1-2-132)-1[(1-2-116)(1+2-116)](1+2-18)(1+2-14)(1+2-12)
=(1-2-132)-1(1-2-18)(1+2-18)(1+2-14)(1+2-12)
=(1-2-132)-1(1-2-14)(1+2-14)(1+2-12)
=(1-2-132)-1(1-2-12)(1+2-12)
=(1-2-132)-1(1-2-1
=12(1-2-132)-1
故选A.

考点: