2020-수학-가형-홀수-3¶
문제¶
풀이¶
from sympy import *
A = Point(2,0,1)
B = Point(3,2,0)
a = symbols('a')
C = Point(0,a,0)
C.distance(A)
\[\displaystyle \sqrt{a^{2} + 5}\]
C.distance(B)
\[\displaystyle \sqrt{\left(a - 2\right)^{2} + 9}\]
eqn = C.distance(A)**2-C.distance(B)**2
eqn
\[\displaystyle a^{2} - \left(a - 2\right)^{2} - 4\]
solve(eqn,a)
[2]