✨ 最佳解答 ✨ qn 11個月以前 a = 1 b = 2-√2 1/b = 1/(2-√2) = (2+√2)/(4-2) = 1 + √2/2 1/a = 1 1/b - 1/a = √2/2 小丑 10個月以前 感恩感恩👌 留言
感恩感恩👌