一个英语单词不解 I have a big paper due Monday ,but l promised Laura we would clean the apartment this weekend!

一个英语单词不解 I have a big paper due Monday ,but l promised Laura we would clean the apartment this weekend! i的计算问题a+bi形式 I a-bI 的绝对只是什么 一个高次多项式,系数为实数,i为虚数,a,b为实数.若f(a+bi)=0,证明f(a-bi)=0 复数Z=a+bi是方程Z复数Z=a+bi是方程Z（平方）=-3+4i的一个根，则z= 英语单词have a -a+i=bi怎么推出(1-a)i=bi 求求各位亲了 已知a>0,ba,化简Ia+bI-Ia-bI-I-a-bI-Ib-aI=? (2+i)/i=a+bi a+b=? I will have the letter_ right away.A,writing BI will have the letter_ right away.A,writing B,writting C,to write D,write 计算(a+bi)* (a-bi) - 已知a＜0,b＞0那么 Ia＋bI－Ia－bI－I－bI＝? I2-(-a+1)I-Ib-2I+2Ia+bI 句子中的一个英语单词不懂i have a big paper due Monday ,but I promised Laura we would clean the apartment this weekend! 英语单词填空 I have never seen her since her father fell sick of a serious i---最后一个空是填ill还是illness?为什么?我认为是ill, by the time you arrive this evening,_______ for two hours.a i will study bi willhave been studiedc i had studied d iwill have been studying 例如：(1+2ai)i=1-bi,则绝对值的(a+bi)等于？ 若复数2-ai=i(1-bi),则a+bi