定義運(yùn)算＝ad－bc，則符合條件＝2的復(fù)數(shù)z＝________.

關(guān)于x的方程3x²－x－1＝10i－ix－2ix²有實(shí)數(shù)根，則實(shí)數(shù)a的值為______．

若復(fù)數(shù)z的虛部為3，模為5，則＝________.

在復(fù)平面內(nèi)復(fù)數(shù)對(duì)應(yīng)點(diǎn)的坐標(biāo)為________，復(fù)數(shù)的模為________．

若復(fù)數(shù)z＝1－2i，則z＋z＝________.

復(fù)數(shù)z＝3＋4i對(duì)應(yīng)的點(diǎn)Z關(guān)于原點(diǎn)的對(duì)稱點(diǎn)為Z₁，則向量對(duì)應(yīng)的復(fù)數(shù)為________．

復(fù)數(shù)z＝(a²－2a)＋(a²－a－2)i(a∈R)對(duì)應(yīng)的點(diǎn)在虛軸上，則a的值為
________．

復(fù)數(shù)＝________.

設(shè)復(fù)數(shù)z滿足i(z＋1)＝－3＋2i，則z的實(shí)部為________．

復(fù)數(shù)z與(z＋2)²－8i均為純虛數(shù)，則z＝________.