Giải tích không gian

V

vovandong

that kho hieu cai de vi to thay cha co diem nao thoa man ca ta luon co MA+MB\geqAB ma dau bang cung khong the xay ra do duong thang AB song song voi d (M khong thuoc AB)vi vay to nghi hoac de sai hoac do la dap an cuoi cung rui
 
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