I am a freshman. I did a math problem in science class last night. I feel less difficult than last year. On the Internet, I saw some teachers say that math is more difficult. After reading the content, I found that it was a liberal arts.

Choosing the last line in mathematics only needs the most basic derivation rule, and the operation is a bit complicated.

Other small problems are simple.

The big questions are difficult from the second question of 20 questions, but they are all difficult to do. Judge k>2 is enough and should get a lot of points.

Generally speaking, this year's math problems in science are slightly simpler than last year.