Current location - Training Enrollment Network - Mathematics courses - On the answering standard of senior high school mathematics
On the answering standard of senior high school mathematics
The set questions that are clearly stated in the general questions are generally in the fill-in-the-blank questions {x | x >;; 0} This table is a set, and you will definitely be asked to write it as a set. If you want to find the domain of x, you can write it as X >;; 0 X∈(0, +∞) can be written as a set, which is not a big problem. Generally, the first two kinds are written more, because it is more convenient to write. If it is a fill-in-the-blank question, it is not acceptable to ask you to find the solution set of an equation x>, and the latter two forms must be deducted. As for X∈(0, +∞), is there an X∈? It seems that the requirements are not particularly strict. Generally, when writing, the definition of X will be written as (0, +∞). This is what I remember when I was studying. I hope it helps you.