5 10 15最大公因數最小公倍數

5 10 15最大公因數最小公倍數

5 10 15最大公因數是5
5 10 15最小公倍數30
This is his pencil-box.改為複數句子怎麼改?
These are their pencil- boxes .
These are their pencil-boxes
These are his pencil-boxes.
複數Z滿足丨Z-1丨=1,則丨Z+2-i丨的取值範圍是多少?
本人極其不懂
請超級詳細的說明下
丨Z-1丨=1表示z在以(1,0)為圓心,1為半徑的圓上
丨Z+2-i丨=|z-(-2+i)|表示圓上的點到(-2,1)的距離,
其最大值=√[(1+2)^2+1]+1=1+√10
最小值=√[(1+2)^2+1]-1=√10 -1
故值域是[1+√10,√10 -1]
根號10-1<丨Z+2-i丨<根號10-1
That box is his複數句式
these boxes are their
若a^2+b^2=4,複數z=a+(b+2)i,求|z|的取值範圍
whose coat is it?改為複數形式,
Whose coats are these?
Whose coats are those?
Whose coats are they?都可以
whose coats are they?
Whose coats are they?
【俊狼獵英】團隊為您解答。
Whose coats are they?
whose coats are they?
whose coats are they
已知Z為複數,且Z减2减2i的模等於一,i為虛數組織,則z加2减2i的模的最小值為多少
|Z-2-2i|=1可以把Z看做一圓的軌跡半徑為1圓心為(2,2)則|Z+2-2i|可以看做點(-2,2)到該圓的距離,該點和圓心的縱坐標正好相等所以|Z+2-2i|最小值為改點和圓心的距離4减去半徑1=3
設Z=a+bi,則
Z-2-2i=a-2+(b-2)i
(a-2)²;+(b-2)²;=1
則0≤|a-2|≤1,0≤|b-2|≤1
∴1≤a≤3
Z+2-2i=a+2+(b-2)i
(a+2)²;+(b-2)²;=(a-2)²;+(b-2)²;+4a=1+4a
5≤1+4a≤13
∴z加2减2i的模的最小值為√5
由|z-(2+2i)|=1.可知在複平面上,複數z對應的點的集合是以點P(2,2)為圓心,半徑為1的圓。而|z+2-2i|=|z-(-2+2i)|的意義則是該圓上的點到的Q(-2,2)的距離。易知|PQ|=4.數形結合可知,|z+2-2i|min=4-1=3.
2倍的跟2减1
It's a pencil box複數改
They are pencil boxes.
They are pencil boxes.
ey are pencil boxes.
改成複數形式?
這樣
there are pencil boxes。
There are pencil boxes
They are pencil-boxes.
theyarepencilboxes
若複數z同時滿足z减z的共軛複數等於2i,z的共軛複數等於iz
z=a+bi
z的共軛=a-bi
z减z的共軛複數等於2i
(a+bi)-(a-bi)=2bi=2i b=1
z=a+i
z的共軛=a-i=(a+i)*i=-1+ai
a=-1
z=-1+i
That is a box改為複數句子
Those are boxes.
They are boxes.
Those are boxes.
what are these in english?
These is boxes.