已知實(shí)數(shù)x,y滿足方程x2+(y-1)2=1/4求根下(x-2)2+(y-3)2的取值范圍
已知實(shí)數(shù)x,y滿足方程x2+(y-1)2=1/4求根下(x-2)2+(y-3)2的取值范圍
數(shù)學(xué)人氣:368 ℃時(shí)間:2020-05-10 06:30:43
優(yōu)質(zhì)解答
點(diǎn)P(x,y)為以O(shè)(0,1)為圓心,半徑為r=1/2的圓上的點(diǎn)√[(x-2)^2+(y-3)^2]表示P到點(diǎn)A(2,3)的距離PA因?yàn)镺A=√(2^2+2^2)=2√2所以PA的最大及最小值的點(diǎn)都在OA直線與圓的交點(diǎn)上最大為OA+r=2√2+1/2,最小為OA-r=2√2-1/2...
我來回答
類似推薦
- 已知實(shí)數(shù)x,y滿足方程x2+(y-1)2=1/4求根下(x-2)2+(y-3)2的取值范圍
- 已知方程x2+(m+2)x+m+5=0有兩個(gè)正根,則實(shí)數(shù)m的取值范圍是( ?。?A.m≤-2 B.m≤-4 C.m>-5 D.-5<m≤-4
- 已知實(shí)數(shù)x,y滿足x2+y2=1,求y+2/x+1的取值范圍.
- 一元二次方程x2+(a2-1)x+(a-2)=0的一根比1大,另一根比1小,則實(shí)數(shù)a的取值范圍是_.
- 方程x2+y2-x+y+m=0表示一個(gè)圓,則m的取值范圍是( ) A.m≤2 B.m<2 C.m<12 D.m≤12
- 函數(shù)f(x)=sinx-cosx^2的最小值是?
- 英語翻譯
- I took my grandpa to the hospital this morning,_____ I missed the first class.
- So crazy
- 方差是各個(gè)數(shù)據(jù)與平均數(shù)之差的平方的平均數(shù)
- 函數(shù)y=f(x)與它反函數(shù)y=f^-1(x)怎么讀?
- These are photos of my families.Look at them 改錯(cuò)
猜你喜歡
- 1平面與平面重合,是否屬于平行一類?那重合的兩直線,也屬于平行一類的嗎?
- 2非洲每年因饑餓死亡的人數(shù)及現(xiàn)在饑餓人口數(shù)量拜托各位了 3Q
- 3decide to do sth.還=什么
- 4(7/8)o you think of london?B:5.____london is one of the liveliest cities
- 5啤酒可以托運(yùn)嗎
- 6邊長為2√6的等邊三角形的中心到一邊的距離為?
- 7please give your hand to help me
- 8已知2的X次方等于3的Y次方等于6的Z次方不等等于1,證明X分之一加Y分之一等于Z分之一.
- 9幫我做做?
- 10機(jī)械分析天平TG628A的使用說明書
- 11in winter ,we wear warm coats to protect our bodies_.
- 12( )was most importance to her ,she told me,was her family it this what as