Choose 6 questions and fill in 4 questions (7 points for each question). Combination of algebra, geometry, and number theory (generally choose the filling axis)

Inductive knowledge points: real number simplification; The five centers of the triangle are the focus of investigation. But the knowledge system it covers is relatively simple, and sometimes multiple-choice questions and fill-in-the-blank questions still need to be done skillfully; Give a special value; (quadratic form in 2008)

70 points for the second exam

The first problem is the mutual transformation between quadratic equation and quadratic function, the distribution of roots and the problem of integer roots.

(required questions for sprint awards)

The second major problem is geometric synthesis.

(the big problem of sprinting for the first prize)

Inspection points 05 and 06 * * * are on the third line, Mené lios, Seva, 09 geometric calculation (four-point * * * circle), 07, 10 similar triangles.

We should work harder on geometry and try to win.

The third big question, Test 2, and the last question, with a score of 25, is mainly based on the combination of number theory. If you have a clear mind, you can write down a simple 5 points.