Final answer:
The subject in question is a mathematical concept—specifically the use of 5-digit arithmetic with chopping to determine the roots in computational problems. Chopping is a method of rounding where digits beyond a certain precision point are simply discarded rather than traditionally rounded.
Step-by-step explanation:
The question asks how to use 5-digit arithmetic with chopping to determine the roots of an equation. In mathematics, especially when dealing with computational problems like finding square roots, we sometimes need to perform calculations with a limited number of significant figures and apply rounding rules. Chopping, specifically, is a method of rounding where we simply 'chop off' digits beyond a certain point without considering their value, unlike traditional rounding where the last retained digit might be adjusted based on the values of the digits being dropped.
For instance, when finding the square root √x, we may encounter this in situations like equilibrium problems in chemistry or physics. A key concept to remember is that x² = √x, meaning that the square of √x is x. If x² is 5, then √x is approximately the square root of 5. When we perform operations like these on a calculator, we should be aware of the number of significant figures to retain, especially when dealing with approximations and rounding methods.
It's important to note that while the rules of rounding might suggest increasing the last retained digit if the digit to be dropped is 5 or more, chopping does not consider this and simply deletes digits past the set precision point. Coming to grips with these concepts through practice can turn them into a useful lifelong skill, simplifying complex arithmetic operations.