在直角坐标系里,已知点a(2,-6) b(-4,2),点p在y轴上,且pa=pb,求点p坐标
在直角坐标系里,已知点a(2,-6) b(-4,2),点p在y轴上,且pa=pb,求点p坐标
数学人气:326 ℃时间:2019-10-18 08:22:56
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百分百真鬼,设 P (0 ,y) 则 PA = √[2² + (y + 6)²] PB = √[(-4)² + (y - 2)²] 所以 √[2² + (y + 6)²]= √[(-4)² + (y - 2)²] 2² + (y + 6)² = (-4)² + (...
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