若
,且
,
,则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1eb9e181572101d33f40b4777943d38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83b4de505eaf1d2f8ee3b552423181c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5056ebb8c2191103d8ee751c4bc418fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a265de2b6a2152ac286e46dd3e1baf9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
A.1 | B.36 | C.1或36 | D.1或49 |
更新时间:2020-08-30 22:02:27
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【推荐1】已知三角形的三条边长为3,5,k,化简:
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【推荐2】若x的相反数是﹣3,|y|=5,则x+y的值为( )
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【推荐1】算式(
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A.乘法交换律 | B.乘法结合律 | C.乘法交换律和结合律 | D.乘法对加法的分配律 |
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