首页
若,则m2-mn-n3的值为A.13B.14C.15D.16
试题详情
若
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAHsAAAAZCAYAAAAR+1EuAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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==
)
,则m
2-mn-n
3的值为( )
A.13
B.14
C.15
D.16
相关试题
-
若
,则m2-mn-n3的值为( )
A.13
B.14
C.15
D.16
-
已知等腰三角形的一腰长为6,底边长为4,则这个等腰三角形的周长为( )
A.13
B.14
C.15
D.16
-
如图,在矩形ABCD中,AE,AF三等分∠BAD,若BE=2,CF=1,则最接近矩形面积的是( )
![](https://img.xintiku.com/upload/8f/57/8f57a23eebcf880b6499394555eecb58.png)
A.13
B.14
C.15
D.16
-
已知,⊙O的内接△ABC中,AB=21,AC=20,BC边上的高AD=15,则⊙O的半径是( )
![](https://img.xintiku.com/upload/ab/92/ab9224815e4ee2bb1e3573846d40f2ef.png)
A.13
B.14
C.15
D.16
-
如图,等腰△ABC的周长为21,底边BC=5,AB的垂直平分线DE交AB于点D,交AC于点E,则△BEC的周长为( )
![](https://img.xintiku.com/upload/14/fc/14fc575eeee13f33503b8aace615cd8d.png)
A.13
B.14
C.15
D.16
-
如图,等腰△ABC的周长为21,底边BC=5,AB的垂直平分线DE交AB于点D,交AC于点E,则△BEC的周长为( )
![](https://img.xintiku.com/upload/98/20/9820f5aecfc44dc40b2d44b8b162b789.png)
A.13
B.14
C.15
D.16
-
如图,等腰△ABC的周长为21,底边BC=5,AB的垂直平分线DE交AB于点D,交AC于点E,则△BEC的周长为( )
![](https://img.xintiku.com/upload/e0/b0/e0b09745dad5c9eeff84fcbedab0535f.png)
A.13
B.14
C.15
D.16
-
如图,等腰△ABC的周长为21,底边BC=5,AB的垂直平分线DE交AB于点D,交AC于点E,则△BEC的周长为( )
![](https://img.xintiku.com/upload/77/4c/774c01c903fb3a6731005586cf580fb0.png)
A.13
B.14
C.15
D.16
-
如图,等腰△ABC的周长为21,底边BC=5,AB的垂直平分线DE交AB于点D,交AC于点E,则△BEC的周长为( )
![](https://img.xintiku.com/upload/ae/0c/ae0c217afa654ba266bc410dbfb38b3e.png)
A.13
B.14
C.15
D.16
-
如图,等腰△ABC的周长为21,底边BC=5,AB的垂直平分线DE交AB于点D,交AC于点E,则△BEC的周长为( )
![](https://img.xintiku.com/upload/e6/aa/e6aa077005e853ea0ded39c8e127fabc.png)
A.13
B.14
C.15
D.16