見下圖, find for possible x, y, p and q
(答案有 x=3, y=2, p=8, q=9 or x=5, y=5, p=32, q=25)
可以點solve?
[attach]53494[/attach] 作者: blazehaze 時間: 2020-12-17 05:46 AM
let say we have a real number k such that log_x(log_y(p)) = log_y(log_x(q)) = k
then we obtain p = y^(x^k) and q = x^(y^k)
hence the solution set is {x, y, y^(x^k), x^(y^k) : x > 0, x ≠ 1, y > 0, y ≠ 1, k ∈ R} 作者: A380123 時間: 2020-12-17 02:26 PM 標題: 回覆 2# blazehaze 的帖子