ap=-2pb
ap+2pb=0
ap+pb+pb=ab+pb=0
ab=(2,-6)
p(x,y)
pb=(4-x,-3-y)
2+4-x=0
-6-3-y=0
x=6
y=-9
p(6,-9)
已知a〔2,3〕b〔4,-3〕且向量ap=-2向量pb則p點(diǎn)坐標(biāo)的解題步驟
已知a〔2,3〕b〔4,-3〕且向量ap=-2向量pb則p點(diǎn)坐標(biāo)的解題步驟
數(shù)學(xué)人氣:802 ℃時(shí)間:2020-06-25 04:48:17
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