Final answer:
When copying a formula in mathematics, use the simplified subscript in the final formula and do not write the subscript if it is 1.
Step-by-step explanation:
When copying a formula in mathematics, the following apply:
- Use the simplified subscript in the final formula. For example, if the original formula has a subscript of 2, the copied formula should also have a subscript of 2.
- Do not write the subscript if it is 1. For example, if the original formula has a subscript of 1, the copied formula should not have a subscript.