I don't directly prove it. I will find a number less than 5 and compare 3 with 2.

Obviously, the result of 3> should be known to everyone in the world, so it is absolutely true. 5>3 is also known by the earth, so there are 5>3>2.

It can be proved that inequality is transitive.

Well, this example is not difficult to understand. Look back! Let's reduce 5 to 3. This is the essence of solving this problem! So, in fact, you reduced it by 5, compared it, and it came out ~ ~ Again, you are required to prove this problem by scaling, which requires you to prove it by expansion. To sum up, you can know that the essence of scaling method is to find an intermediate constant to help compare the properties of this intermediate constant, which must have a very direct and clear size relationship with the object to be proved ~ ~ and then draw a conclusion through transitivity ~ ~ OK ~ I hope you understand this method. General inequality is proved by speaking skills ~ ~ I'll give you a sentence. Do more questions and summarize more ~ ~ This is the skill of mathematics ~ ~ It is a very good idea to grasp the lifelong benefit! ! ! Good luck ~