(in-syl method)
let A be a point on 4x-3y=24
such that IA is perpendicular to 4x-3y=24
solving, A = (15, 12)
by using distance formula, IA = 20
so, a = 31 + 20 = 51
來讓我瀟灑星際玩2020-05-02 22:13:48
雙眼開始像飲醉2020-05-02 22:14:20
我對完paper 1 ans 岩哂,但唔知會唔會有野比佢扣到分例如steps, 阿,presentation reasons 果D