若
,且a、b、k满足方程组
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/802b8f5f0eb2d2c7b471a9cfe03c6719.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d204348404fb887eaffc6be6d44dfc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074ca9ca8f4c1a6c5d895436641840c9.png)
A.![]() | B.![]() | C.![]() | D.1 |
更新时间:2020-11-06 15:34:22
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![](https://img.xkw.com/dksih/QBM/2017/4/21/1670522728521728/1672144298024960/STEM/8399a02528204aa18d587926cd477b33.png?resizew=3)
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