Olympic toán toàn quốc - Việt nam 2002 sưu tầm từ internet | Toán học, Olympic toán toàn quốc - Việt nam 2002 Bài từ Tủ sách Khoa học VLOS. A1. Solve the following equation: �"(4 - 3�"(10 - 3x)) = x - 2. A2. ABC is an isosceles triangle with AB = AC. O is a variable point on the line BC such that the circle center O radius OA does not have the lines AB or AC as tangents. The lines AB, AC meet the circle again at M, N respectively. Find the locus of the orthocenter of the triangle AMN. A3. m 1. Show that as n tends to infinity, xn tends to 4.
