已知点M(2,2),N(5,-2),在x轴上求满足角MPN是直角的P点坐标.

问题描述:

已知点M(2,2),N(5,-2),在x轴上求满足角MPN是直角的P点坐标.

P(X,0)
MP垂直于PN
kMP*kPN=-1
得X=1或6
P1(1,0) P2(6,0)