共50条信息
若复数\(z\)满足\(|z|=1(i\)为虚数单位\()\),则\(|z-2i|\)的最小值是_____.
设复数\(z\)满足\(\left( 1+i \right)z=\left| 1-i \right|(i\)为虚数单位\()\),则复数\(z\)的共轭复数\(\overline{z}=\)( )
设复数\(z=a+b{i}\) \(\left(a,b∈R,a > 0\right) \),满足\(|z|=\sqrt{10}\),且复数\((1-2i)z\)在复平面上对应的点在第二、四象限的角平分线上.
\((1)\)求复数\(z\);
\((2)\)若\(\overset{¯}{z}+ \dfrac{m+i}{1-i}\left(m∈R\right) \)为纯虚数,求实数\(m\)的值.
设复数\(z\)满足\((1{+}i)z{=}2i\),则\({|}z{|} = ({ })\)
若\(z= \dfrac{2-i}{2+i} \),则\(|z|=(\) \()\)
已知复数\(z\)满足\(z\)\(+|\)\(z\)\(|=2+8i\),则复数\(z\)\(=\)______.
若\( \dfrac {a}{1-i}=1-bi\),其中\(a\),\(b\)都是实数,\(i\)是虚数单位,则\(|a+bi|=\) ______
对任意复数\(z\)\(=\)\(x\)\(+\)\(yi\)\((\)\(x\),\(y\)\(∈\)\(R\) ,\(i\)为虚数单位\()\),则下列结论正确的是\((\) \()\)
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