Only sine theorem, cosine theorem, area formula and basic inequality are used to solve triangle problems, and the score of 10 can be obtained completely;

The first problem of derivative problem, take the derivative (and give the definition domain at the same time), make the derivative zero to get the extreme point and list, and get the monotonous interval, extreme value and maximum value from the list, so that at least 4 points can be obtained;

The first question of the sequence problem: substitute n= 1, 2, 3 into the recursive relation to find the first few items, and get at least 4 points;

The standard equation of ellipse and a? =b？ +c？

The first question of parametric equation: Remember only cos? X+ crime? X= 1, that is, the parametric equation can be transformed into ordinary equation;

Multiple choice questions and fill-in-the-blank questions with 8~ 10 can be easily corrected by special value method.

Good luck in the exam!