斜率2=(y2-y1)/(2+3)
丨P1P2丨=根號(hào)((y2-y1)^2+25)=5*根號(hào)5
斜率為2的直線上有兩點(diǎn)P1(-3,y1)、P2(2,y2),則丨P1P2丨=
斜率為2的直線上有兩點(diǎn)P1(-3,y1)、P2(2,y2),則丨P1P2丨=
其他人氣:416 ℃時(shí)間:2020-05-18 07:05:44
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