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已知i为虚数单位，若复数z满足，则复数z= ．
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高二下学期数学《》真题及答案
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若复数z满足z=i2+zi为虚数单位则z=__________.
已知复数z满足z-2i=1+ii是虚数单位则|z|=____________.
已知i是虚数单位若复数z满足zi=1+i则z²=
）-2i （
）2i （
）-2 （
）2
已知复数z1满足z1-21+i=1-ii为虚数单位复数z2的虚部为2z1·z2是实数求z2．
复数z满足﹣1+iz=1+i2其中i为虚数单位则复数z=__________.
已知复数z满足|z﹣i|+|z+i|=3i是虚数单位若在复平面内复数z对应的点为Z.则点Z.的轨迹为
直线
双曲线
抛物线
椭圆
在复平面内若复数z满足z-2i=4+ii为虚数单位则复数z的模为.【
若复数z满足|z+3|=|z﹣4i|i为虚数单位则|z|的最小值为.
已知复数z满足z－2i＝1＋ii为虚数单位则z的模为________.
已知复数z满足3+4iz=1i为虚数单位则z的模为.
设复数z满足z•i=2﹣ii为虚数单位则z=________
若复数z满足z=i2+zi为虚数单位则z=.
若复数z满足1+iz=2i为虚数单位则z=.
若复数z满足1＋2iz＝－3＋4ii是虚数单位则z＝________.
i是虚数单位若复数z满足zi=﹣1+i则复数z的实部与虚部的和是
0
1
2
3
已知i为虚数单位a为实数复数z满足z+3i=a+ai若复数z是纯虚数则
a=3
a=0
a≠0
a＜0
已知复数z满足3+iz=10i其中i是虚数单位满足i2=﹣1则复数z的共轭复数是
﹣1+3i
1﹣3i
1+3i
﹣1﹣3i
已知i为虚数单位a为实数复数z满足z+3i=a+ai若复数z是纯虚数则
a=3
a=0
a≠0
a＜0
已知复数z1满足z1－21＋i＝1－ii为虚数单位复数z2的虚部为2且z1·z2是实数则z2＝.
设复数z满足z1＋i＝2＋4i其中i为虚数单位则复数z的共轭复数为__________.
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OurMuseumsGalleriesandZoo 19world﹣classmuseumsgalleriesandazoo TheSmithsonianofferselevenmuseumsandgalleriesontheNationalMallandsixothermuseumsandtheNationalZoointhegreaterNationalCapitalArea.InNewYorkCityweinviteyoutotourtwomuseumsinhistoricsettings. NotnearaSmithsonianmuseum?Lookforexhibitionsandmuseumsinyourcommunity.Herewehavelistedsomeplacestovisit Tips&Guidelines StopatanySmithsonianmuseuminformationdeskwherefriendlyandknowledgeablestaffandvolunteerscanassistyouinplanningyourvisit. ServiceanimalsarewelcomeatthemuseumsandtheNationalZoo.Petsarenotpermitted. Lunchesshouldbeproperlyclosedorstoredinlockersduringyourvisit. 1TheSmithsonianoffersalltheseEXCEPT. A.galleries B.concerts C.museums D.zoos 2Ifyouareinterestedinanimalsyoucan. A.goto1661PennsylvaniaAvenueNWWashingtonDC B.goto8thandFStreetsNWWashingtonDC C.visitthemuseum11a.m.onChristmas D.visitthezooatweekendsonJune25 3Toarrangeyourvisitbetteryoucan. A.havelunchduringyourvisit B.takeyourpetsalongwithyou C.askthestaffandvolunteersforhelp D.fillinanapplicationformbeforeyourvisit
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计算1﹣2sin215°的结果为
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在四棱锥P﹣ABCD中底面ABCD是平行四边形PA⊥平面ABCD点MN分別为BCPA的中点且PA＝AD＝2AB＝1AC＝． 1证明MN∥平面PCD 2求直线MN与平面PAD所成角的余弦值．
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