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来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/21 22:31:38
(0(0(0y=sinx+4/sinx在012
(0(0(0y=sinxcosx(sin^3x+cos^3x)=sinxcosx(sinx+cosx)(sin^2x-sinxcosx+cos^2x)=(1-sinxcosx)sinxcosx*(si
-0-0-0(1)a正极,b负极,c阴极,d阳极,e阳极锌,f阴极铁c显红色,氢氧根增多,cd为电解饱和食盐水,c:2H++2e=H2(气体符号),f:2Cl--2e=Cl2(气体符号),所以a正极b
:0:0:00
(0(0(0范围应该是:(0,π]∵x∈(0,π]设t=sinx,t∈(0,1]y=sinx+4/sinx即:y=t+4/tt∈(0,2]上是减函数∴当t=1时,即x=π/2时y(min)=1+4=5
-0--0--0-吃惊吧--
>0>0>0
:0:0:0换元令t=sinxt∈(0,1)y=t+2/t这个是对勾函数,在(0,1)上递减t=1时,y=3所以y=sinx+2/sinx的值域(3,+∞)令t=sinx因为0所以t∈(0,1)y=t
0||0||0||0||0||0||表示图纸的大小长X宽1号图:841X594(mm),也就是A1纸.2号图:594x420(mm),也就是A2纸.3号图:420x297(mm),也就是A3纸.4号图
图形智力题0000000000000000000000000000000000从哪开始都可以,最后落在叉上,每个圈必须而且只能经过一次,不能重复不能画斜线,一笔连下来.图形智力题00000000000
8000300000030000000000000000070500600100049000500000000000100000709005002408000008000300000030000000
挑战智商的智力题000X000000000000000000000从哪开始都可以,最后落在叉上,每个圈必须而且只能经过一次,不能重复不能画斜线,一笔连下来.挑战智商的智力题000X0000000000
unsignedchartmp2[14]=0,0,0,0,0,0,0,0,0,0,0,0,0,0;cpuPoker[index][ind[i]].num=0;lcdscore->display(sco
24圆圈,一笔怎么样连成?000000000000000000000000如上图,不允许斜线和对角,空的哪个圆圈不让过.只允许上下直线连,一笔连成,谁知道怎么连,谢谢~~!00000000000000
如何一笔连成24个圆圈000000000000000000000000如何一笔连成24个圆圈000000000000000000000000如何一笔连成24个圆圈0000000000000000000
上三角行列式00000100002*0003**004***05****求值相反的下三角这么求呢?000010002*003**04***5****=a11A11+a21A21+a31A31+a41A
独立事件会发生的概率001020000000100000000200010000000110001000000000000000011210001200000011000201000000220010
*****1****20***300**4000*50000600000求6阶行列式,等于-6!怎么解刚入门不懂*****1****20***300**4000*50000600000求6阶行列式,等
D3=0````````0100````````200````````````N-1`````0000````````00N计算行列式,D3=0````````0100````````200`````
0+0+0+0+^+^=22.60+0+^+^+^+^=24.20+0+0+0+^+^=22.60+0+^+^+^+^=24.20+0+0+0+^+^=22.60+0+^+^+^+^=24.20=3.