中点 (-7/2 , 1/3),(1/2 , 10/3)

解答

中点

(- \frac{7}{2}, \frac{1}{3}), (\frac{1}{2}, \frac{10}{3})

(- \frac{3}{2}, \frac{11}{6})

求解步骤

(x_{1}, y_{1}), (x_{2}, y_{2})

的中点:

(\frac{x _{2} + x _{1}}{2}, \frac{y _{2} + y _{1}}{2})

(x_{1}, y_{1}) = (- \frac{7}{2}, \frac{1}{3}), (x_{2}, y_{2}) = (\frac{1}{2}, \frac{10}{3})

= (\frac{\frac{1}{2} - \frac{7}{2}}{2}, \frac{\frac{10}{3} + \frac{1}{3}}{2})

整理后得

= (- \frac{3}{2}, \frac{11}{6})

r an g e 6 x + 2

in f l ec t i o n f (x) = x^{2} \cdot ln (\frac{x}{2})

d o main f (t) = (16 - t)^{\frac{1}{6}}

in v erse f (x) = lo g_{6} (x - 1)

d i s t an ce (0, 0), (3, 4)