Answer:
![√(41)](https://img.qammunity.org/2021/formulas/mathematics/college/e2046ljgsq9gq1v4yqvyu1hm83rzkz9j59.png)
Explanation:
The part " d6 + i " threw me off track there, so I am going to assume that the question asks us to find the distance between 2 - 4i and 6 + i. This can be determined through a simple " distance formula, " as shown in the attachment below,
![d = √(( 6 - 2 )^2 + ( 1 - ( - 4 )^2),\\d = √(( 4)^2 +( 5 )^2),\\d = √(41)](https://img.qammunity.org/2021/formulas/mathematics/high-school/cmyo0uccxopegwizh4e4degdm82rbu3jef.png)
The distance is √41!