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            • 1.

              已知\(i\)为虚数单位,复数\(z=\dfrac{2+i}{1-2i} \),则\(z^{3}=(\)  \()\)

              A.\(i\)                                 
              B.\(-i\)                                
              C.\(1\)                                
              D.\(-1\)
            • 2.

              设\(i\)为虚数单位,复数\(z\)满足\(z(1+i)=2{{i}^{2018}}\),则\(z\)等于

              A.\(1+i\)
              B.\(1-i\)
              C.\(-1+i\)
              D.\(-1-i\)
            • 3.

              已知复数\(Z{=}i+2{{i}^{2}}+{{i}^{10}}\),则\(|z|=\)(    )

              A.\(\sqrt{2}\)
              B.\(\sqrt{5}\)
              C.\(\sqrt{10}\)
              D.\(2\)
            • 4.

              \({{(\dfrac{1}{2}-\dfrac{\sqrt{3}}{2}i)}^{3}}=\) (    )

              A.\(1\)
              B.\(-1\)
              C.\(-\dfrac{1}{4}-\dfrac{3\sqrt{3}}{4}i\)
              D.\(1- \sqrt{3}i \)
            • 5.

              若复数 \(z=\dfrac{1+i}{1-i}\) ,\(\overline{z}\)为的共轭复数,则\({{\left( \overline{z} \right)}^{2017}}=(\)  \()\)

              A.\(i\)
              B.\(-i\)
              C.\(-{{2}^{2017}}i\)
              D.\({{2}^{2017}}i\)
            • 6.

              已知\(i\)为虚数单位,则 \(\dfrac{1+i}{3-i}=\)

              A.\(\dfrac{2-i}{5}\)
              B.\(\dfrac{2+i}{5}\)
              C.\(\dfrac{1-2i}{5}\)
              D.\(\dfrac{1+2i}{5}\)
            • 7.

              计算\(( \dfrac{1+i}{1-i}{)}^{2017}+ \dfrac{1-i}{1+i}{)}^{2017} =\)(    )

              A.\(-2i\)     
              B.\(0\)      
              C.\(2i\)          
              D.\(2\)
            • 8.

              若\(z=\left(a- \sqrt{2}\right)+ai \)为纯虚数,其中\(a∈R \),则\( \dfrac{a+{i}^{7}}{1+ai}= (\)   \()\)

              A.\(i\) 
              B.\(1\) 
              C.\(-i\) 
              D.\(-1\)
            • 9.

              已知\(a\)为实数,若复数\(z=({{a}^{2}}-1)+(a+1)i\)为纯虚数,则\(\dfrac{a+{{i}^{2016}}}{1+i}\)的值为\((\)    \()\)


              A.\(1\)
              B.\(0\)
              C.\(1+i\)
              D.\(1-i\)


            • 10.

              \(i^{2}+ i^{4}=\)                           

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