优优班--学霸训练营 > 知识点挑题
全部资源
          排序:
          最新 浏览

          50条信息

            • 1.

              若复数\(z=\dfrac{{{i}^{2018}}}{{{(1-i)}^{2}}}(i\)为虚数单位\()\),则\(z\)的共轭复数\(\overline{z}=\)(    )

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

              下面四个式子中,正确的是 (    )

              A.\(3i > 2i\)
              B.\(|2+3i| > |1-4i|\)
              C.\(|2-i| > 2i^{4}\)
              D.\(i^{2} > -i\)
            • 3.

              \(\left( \left. \dfrac{1+i}{1-i} \right. \right)^{2 018} =\)________.

            • 4.

              \(i\)是虚数单位,满足\((1+2i)z=-3+4i\)的复数\(z=\)(    )

              A.\(1-2i\)
              B.\(-\dfrac{11}{5}+2i\)
              C.\(1+2i\)
              D.\(-4+2i\)
            • 5.

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

              A.\(1\)
              B.\(-1\)
              C.\(-\dfrac{1}{4}-\dfrac{3\sqrt{3}}{4}i\)
              D.\(1- \sqrt{3}i \)
            • 6.

              若集合 \(A=\left\{ i,{{i}^{2}},{{i}^{3}},{{i}^{4}} \right\}\) \((i\) 是虚数单位\()\),\(B=\left\{ 1,-1 \right\}\),则\(A\bigcap B\) 等于____

            • 7. i2016=(   )
              A.﹣1
              B.1
              C.﹣i
              D.i
            • 8. 设i为虚数单位,则复数i2015的共轭复数为 ______
            • 9. 若集合A={i,i2,i3,i4}(i是虚数单位),B={1,-1},则A∩B等于(  )
              A.{-1}
              B.{1}
              C.{1,-1}
              D.∅
            • 10. 复数i+i2等于(  )
              A.1+i
              B.1-i
              C.-1+i
              D.-1-i
            0/40

            进入组卷