This is the math answer of Liaoning college entrance examination. Judging from the difficulty of the question, the first question should be only 5 points. If the second question is 7 points, from the general problem-solving process, there are many answering skills for the second question. Generally, candidates will calculate the BC value and point out that if the relevant geometric conditions are established, they will give 3 to 4 points. If the idea is the same as the answer, or it is just a calculation error, then you can get 5 points for the second question and only deduct 2 points for the answer.