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如图,设k=(a>b>0),则有( )
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教案备课库《八(1)年级数学作业分式的基本性质作业—约分与通分》真题及答案
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如图设k=a>b>0则有
k>2
0<k<
<k<1
1<k<2
如图所示xyz为三个物块k为轻质弹簧L.为轻线.系统处于平衡状态现若将L.突然剪断用axay分别表示
ax=0
ax≠0
ay≠0
ay=0
如图双曲线y=经过抛物线y=ax2+bx的顶点-mm>0则有
a=b+2k
a=b-2k
k<b<0
a<k<0
若在同一直角坐标系中直线y=k1x与双曲线y=有两个交点则有
k
1
+k
2
>0
k
1
+k
2
<0
k
1
k
2
>0
k
1
k
2
<0
如图设a>b>0则有
1<k<2
k>2
若命题
(n)(n∈N
*
)在n=k(k∈N
*
)时命题成立,则有n=k+1时命题成立.现知命题对n=n
0
(n
0
∈N
*
)时命题成立,则有( ) A.命题对所有正整数都成立
命题对小于n
0
的正整数不成立,对大于或等于n
0
的正整数都成立
命题对小于n
0
的正整数成立与否不能确定,对大于或等于n
0
的正整数都成立
以上说法都不正确
一次函数y=kx+b和反比例函数的图象如图所示则有.
k>0,b>0,a>0
k<0,b>0,a<0
k<0,b>0,a>0
k<0,b<0,a>0
如图图①图②中阴影部分的面积为S1S2a>b>0设k=则有
0<k<
<k<1
1<k<2
k>2
设x0是方程8-x=lgx的解且x0∈kk+1k∈Z则k=________.
一次函数y=kx+b和反比例函数的图象如图所示则有.
k>0,b>0,a>0
k<0,b>0,a<0
k<0,b>0,a>0
k<0,b<0,a>0
设δ>0fx在-δδ内恒有fx>0且|fx|≤x2记则有
(A) I=0
(B) I>0
(C) I<0
(D) 不能确定
一次函数y=kx+b和反比例函数的图象如图所示则有.
k>0,b>0,a>0
k<0,b>0,a<0
k<0,b>0,a>0
k<0,b<0,a>0
如图设k=a>b>0则有
k>2
1<k<2
如图设k=a>b>0则有
k>2
1<k<2
<k<1
0<k<
已知直线y=kx+b经过一二四象限则有.
k<0, b <0
k<0, b>0
k>0, b>0
k>0, b<0
以-2730C为基准并记作0°K则有-2720C记作1°K那么1000C应记作
)-173°K.(
)173°K. (
)-373°K. (
)373°K.
如图设k=a>b>0则有
k>2
1<k<2
设一次函数y=kix+bi的图象为L.ii=1234如图所示则有
k
2
>k
1
>k
4
>k
3
k
2
>k
1
>k
3
>k
4
k
1
>k
2
>k
3
>k
4
k
1
>k
2
>k
4
>k
3
设内存的分配情况如图3-19所示若要申请一块40K的内存空间采用最佳适应算法则所得到的分区首址为
100K
190K
330K
410K
设δ>0fx在-δδ内恒有fx>0且|fx|≤x2记[*]则有
I=0
I>0
I<0
不能确定
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