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平面ベクトル「22年 茨城大 後 工 2(5)」をsympyでやってみた。

Last updated at Posted at 2022-12-13

作図はありません

...座標平面上の2つのベクトル...
オリジナル

上と同じです。大学入試数学問題集成>

sympyで(positiveで)

from sympy import *
x=Symbol('x', positive=True)
a,b=map(Point,([3,-1],[x,2]))
print("#",solve((a+2*b).dot((a-b)),x)[0])
# 3/2

sympyで(varで)

from sympy import *
var('x')
a,b=map(Point,([3,-1],[x,2]))
print("#",solve((a+2*b).dot((a-b)),x))
# [0, 3/2]
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