facebooklite+installed


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贡封17297784449: |(3+2i) - (4 - i)等于? -
13506洪庭 : -1+i

贡封17297784449: c语言程序:编写函数,判断一个正整数是否为完全平方数,并输出100以内的完全平方数. -
13506洪庭 : */ package questions; public class Q10 { public static void main(String[]args) { int n=0; for(int i=0;i<=100000;i++)//先确定一个在100000内的大概范围 { if(isCompSqrt(i+100)) { n=i; break; } } System.out.print("所求的数是:"+n); } private static ...

贡封17297784449: 1+2i/a+i怎么计算 -
13506洪庭 : (1+2i)/(a+i)=(1+2i).(a-i)/(a^2+1)=[(a+2)+(2a-1)i]/(a^2+1)

贡封17297784449: 已知复数Z=1+i,求Z的模|Z|,Z的幅角主值aryZ -
13506洪庭 : |z|=√(1+1)=√2z=√2(√2/2+i√2/2)=√2(cos45°+isin45°) 所以辐角主值aryZ=45°

贡封17297784449: 若复数z满足1 - z/1+z=i,则z+1的模为多少 -
13506洪庭 : 1-z=i(1+z) 1-z=i+iz z(1+i)=1-i z=(1-i)/(1+i) |z|=1

贡封17297784449: 设Z1=1+2ai,Z2=a - i(a∈R),已知A={Z||Z - Z1|<=1},B={Z||Z=Z2|<=2},A∩B∈φ,求a的取值范围 -
13506洪庭 : A: Z1-1<=Z<=Z1+1 B: Z2-2<=Z<=Z2+2 A交B为空,则 Z1-1>Z2+2 或Z1+1 3 因 |Z1-Z2|=|1-a+2ai+i| |Z1-Z2|的平方=(1-a)平方+(2a+1)平方=5a方+2a+2>9 (5a+7)(a-1)>0 a>1或a<-7/5

贡封17297784449: 以下哪些组合接入云眸,能够支持最全的:预览回放、定时抓图、I/O报...
13506洪庭 : 解:(1-z)/(1+z)=i.===>1-z=(1+z)i=i+zi.===>(1+i)z=1-i.===>z=(1-i)/(1+i).===>z+1=2/(1+i)=1-i.===>|z+1|=√2.

贡封17297784449: 两千左右的三星手机那个型号比较好? -
13506洪庭 : 如果选择三星品牌,该价位区间可以参考A9 Star Lite(A6050)机型.A9 Star Lite的规格参数,请参考以下内容:1.屏幕:6.0英寸Super AMOLED屏幕,分辨率2220 x 1080 (FHD+).2.外观尺寸:160.2 x 75.7 x 7.9mm,重191g.3.外壳颜色:夜...

贡封17297784449: 智能监控有免费版的吗?
13506洪庭 : I have published Smart Monitor Lite version which is free. You can search Smart Monitor Lite and you can find it.Thanks.

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