點(diǎn)P(2,1)關(guān)于點(diǎn)(3,5)的對(duì)稱(chēng)點(diǎn)的坐標(biāo)是


  1. A.
    (1,5)
  2. B.
    (4,9)
  3. C.
    (5,3)
  4. D.
    (9,4)
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科目:高中數(shù)學(xué) 來(lái)源: 題型:

14、點(diǎn)P(-3,2,-1)關(guān)于平面xOy的對(duì)稱(chēng)點(diǎn)是
(-3,2,1)
,關(guān)于平面yOz的對(duì)稱(chēng)點(diǎn)是
(3,2,-1)
,關(guān)于平面zOx的對(duì)稱(chēng)點(diǎn)是
(-3,-2,-1)
,關(guān)于x軸的對(duì)稱(chēng)點(diǎn)是
(3,-2,1)
,關(guān)于y軸的對(duì)稱(chēng)點(diǎn)是
(3,2,1)
,關(guān)于z軸的對(duì)稱(chēng)點(diǎn)是
(3,-2,-1)

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科目:高中數(shù)學(xué) 來(lái)源: 題型:044

已知直線lx+2y-2=0,試求:

  (1)點(diǎn)P(-2,-1)關(guān)于直線l的對(duì)稱(chēng)點(diǎn)坐標(biāo);

 

  (2)直線l1y=x-2關(guān)于直線l對(duì)稱(chēng)的直線l2的方程;

 

  (3)直線l關(guān)于點(diǎn)(1,1)對(duì)稱(chēng)的直線方程.

 

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科目:高中數(shù)學(xué) 來(lái)源:數(shù)學(xué)教研室 題型:044

已知直線lx+2y-2=0,試求:

  (1)點(diǎn)P(-2-1)關(guān)于直線l的對(duì)稱(chēng)點(diǎn)坐標(biāo);

 

  (2)直線l1y=x-2關(guān)于直線l對(duì)稱(chēng)的直線l2的方程;

 

  (3)直線l關(guān)于點(diǎn)(11)對(duì)稱(chēng)的直線方程.

 

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科目:高中數(shù)學(xué) 來(lái)源: 題型:013

點(diǎn)P(2,1)關(guān)于點(diǎn)(3,5)的對(duì)稱(chēng)點(diǎn)的坐標(biāo)是

[  ]

A(15)

B(4,9)

C(5,3)

D(9,4)

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