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標題: [Core] 求solution [打印本頁]

作者: ADMIRE_MOON    時間: 2018-7-5 11:12 PM     標題: 求solution

求solution
作者: Simon    時間: 2018-7-6 11:39 AM     標題: 回覆 1# ADMIRE_MOON 的帖子

你邊部份唔明?不如試下將你寫左既野放上黎先
作者: ADMIRE_MOON    時間: 2018-7-6 08:47 PM

幫人問only
作者: ado    時間: 2018-10-22 02:34 PM

Brief idea of the solution
(a)
Slope of L2= -1/Slope of L1 = -1/(-2/5)
Equation of L2: (y-2)/(x-5) = Slope of L2
(b)
Put x=0 to L2 to obtain the coordinates of B (y-intercept of L2)
Let P=(a,b)
Slope of PA * Slope of PB = -1
Simplify the equation to obtain the locus of P




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