设w=a+z^6,a∈R,z=[(1-4i)(1+i)+2+4i]/(3+4i),若|w|=10,求a的值

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/20 06:53:17
设w=a+z^6,a∈R,z=[(1-4i)(1+i)+2+4i]/(3+4i),若|w|=10,求a的值设w=a+z^6,a∈R,z=[(1-4i)(1+i)+2+4i]/(3+4i),若|w|=1

设w=a+z^6,a∈R,z=[(1-4i)(1+i)+2+4i]/(3+4i),若|w|=10,求a的值
设w=a+z^6,a∈R,z=[(1-4i)(1+i)+2+4i]/(3+4i),若|w|=10,求a的值

设w=a+z^6,a∈R,z=[(1-4i)(1+i)+2+4i]/(3+4i),若|w|=10,求a的值
z=(1+i-4i+4+2+4i)(3-4i)/(3+4i)(3-4i)
=(7+i)(3-4i)/(9+16)
=(25-25i)/25
=1-i
z^2=(1-i)^2=1-2i-1=-2i
z^6=(-2i)^3=8i
w=a+z^6=a+8i
|w|^2=a^2+64=100
a^2=36
a=(+/-)6

设w=a+z^6,a∈R,z=[(1-4i)(1+i)+2+4i]/(3+4i),若|w|=10,求a的值 设复数z=a+bi(a,b∈R,b>0),z^2/(1+z)和z/(1+z^2)均为实数.求z 设全集U=C,A={z|||z|-1|=1-|z|,z∈C},B={z||z| 设全集U=C.A={z||z-1|=1-|z|,z∈C},B={z||z| 设复数z=1+ai(a∈R)且(2-i)z是纯虚数,则模|z|等于什么 设Z1=1+2ai,Z2=a-i(a∈R),已知A={Z||Z-Z1| Matlab 共轭梯度法求解任意线性方程组!function x = cg(A,b)tol=1e-10;r = b + A*b;w = -r;z = A*w;s = w'*z;t = (r'*w)/s;x = -b + t*w;for k = 1:numel(b);r = r - t*z;if( norm(r) < tol )return;endB = (r'*z)/s;w = -r + B*w;z = A*w;s = w'*z;t = ( 1:设复数z=a+bi(a,b∈R),且z满足条件|z-3+i|=5(1):求实数z(2):求纯虚数z2:若复数z=a+(4-2a)i对应的点Z在实轴的下方,则点Z在第几象限? matlab syms r p w z x;a=10,b=100,c=0.2,m=6,v=4;F=x/10 profr=(r*p-w)*(z+a-b*p)/(1-c)-(r*p-v)*int(F,x,0,z);dprz=diff(profr,'z');dprp=diff(profr,'p');[zstar,pstar]=solve(dprz,dprp,'z','p')profs=(w-m)*(zstar+a-b*pstar)/(1-c)+(1-r)*p*((zstar+a-b*pstar)/(1 【急着要要】设z=a+bi(a,b属于R)求证z-1/z+1是纯虚数的充要条件是|z|=1且b≠0 设z1=1+2ai,z2=a-i(a∈R),已知A={z||z-z1|≤1},B={z||z-z2|≤2},A∩B=空集,求a的取值范围 设复数z满足:(1)z+4/z∈R,(2)丨z-2丨=2,求复数z 已知虚数z满足|z+1|=|z-i|,且z+4/z∈R,则z= 设集合A={z| |z|=1},B={z| |z-1|=1}(z∈C),则A∩B=? 已知虚数z满足|z+1|=|z-i|,且z+4/z∈R,则z等于多少 设复数z=a+i,绝对值z等于根号2,求复数z,和z+1分之z格玛 若z的绝对值+z=a+i,a∈R,求复数z帮下忙 (z-1)^2 =a ,|z|=2 a属于R 求Z (复数范围内求解)