Question

What is the meaning of an underscore sign below greater sign in maths?​

Answer 1

Answer:

The notation a ≤ b or a ⩽ b means that a is less than or equal to b (or, equivalently, at most b, or not greater than b).

Answer 2

Answer:

Updated: 12/31/2020 by Computer Hope. Alternatively referred to as a low line, low dash, and understrike, the underscore ( _ ) is a symbol found on the same keyboard key as the hyphen. The picture shows an example of an underscore at the beginning and end of the word "Underscore."