100道复数四则运算题
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/22 19:27:04
1.3/7×49/9-4/32.8/9×15/36+1/273.12×5/6–2/9×34.8×5/4+1/45.6÷3/8–3/8÷66.4/7×5/9+3/7×5/97.5/2-(3/2+4/5)
1)86+49+114=2)240+(39-40)=3)255+(352+145+48)=4)(345+377)+(55+23)=5)9+(80+191)=6)(268+314+132)+86=7)5
x^2+2x+1=1=>x=0或x=-2x^2-2x-2>2=>x=-2
去书店买一本就行了*还有答案☻
1.z1+z2=(3+4i)+(3-4i)=62.z=(3-i)-(i-3)=6-2i3.AB=-1+2i,AC=-2-3iBC=AC-AB=(2-3i)-(-1+2i)=3-3i4.z1+z2=(a
解题思路:复数的运算。解题过程:varSWOC={};SWOC.tip=false;try{SWOCX2.OpenFile("http://dayi.prcedu.com/include/readq.
你真行啊~~~1.3/7×49/9-4/32.8/9×15/36+1/273.12×5/6–2/9×34.8×5/4+1/45.6÷3/8–3/8÷66.4/7×5/9+3/7×5/97.5/2-(3
几年级的啊?不管了,自己悠着点做!1.3/7×49/9-4/32.8/9×15/36+1/273.12×5/6–2/9×34.8×5/4+1/45.6÷3/8–3/8÷66.4/7×5/9+3/7×5
1.3/7×49/9-4/32.8/9×15/36+1/273.12×5/6–2/9×34.8×5/4+1/45.6÷3/8–3/8÷66.4/7×5/9+3/7×5/97.5/2-(3/2+4/5)
1.3/7×49/9-4/32.8/9×15/36+1/273.12×5/6–2/9×34.8×5/4+1/45.6÷3/8–3/8÷66.4/7×5/9+3/7×5/97.5/2-(3/2+4/5)
设z=a+3i,则根号(a²+3²)=1-a解得,a=-4∴z=-4+3i∴-iz=3+4i(1+i)³=2i·(1+i)=-2+2i原式=(-2+2i)·(-iz)/(
)[1/3×5.8-(31+56)]÷9999(2){[987-789÷(555-159)]×5.7-6.9}×12(3)987.84-(278+322)÷151406+735×9÷453168-78
解题思路:此题考查复数的基本运算以及复数模的计算公式:其中复数除法,分子分母要同时乘分母的共轭复数;复数的模等于根下实部方加虚部方解题过程:
可以看成等差*等比的数列题S=i+2i2+3i3+…+2004i2004iS=i2+2i3+3i4+…+2004i2005相减(1-i)S=i+i^2...+i^2004-2004i2005=(1-i
装不下!21/7+6*8-35+6*31-51/363/7+5-(3*2)5*9+6-8/25*5+66/11-185+6+8*7-5*220-8×2÷4420×(13+57)×9066196÷4+5
1、运算顺序一样的画√,不一样的画○.①3×6÷2②(34+16)÷(18-8)③240÷20-53+6÷2(34+16)×(18-8)240×(20-5)()()()2、小医生看病.(纠正运算错误)
1.3/7×49/9-4/32.8/9×15/36+1/273.12×5/6–2/9×34.8×5/4+1/45.6÷3/8–3/8÷66.4/7×5/9+3/7×5/97.5/2-(3/2+4/5)
1.3/7×49/9-4/32.8/9×15/36+1/273.12×5/6–2/9×34.8×5/4+1/45.6÷3/8–3/8÷66.4/7×5/9+3/7×5/97.5/2-(3/2+4/5)
你的问题在哪里?
给你个好的软件http://www.onlinedown.net/soft/4269.htm没时间看软件,先看看题吧!27÷3×73×6÷925÷5×845+8-2363÷7×824-8+1028÷4