Final answer:
Absolute value does not come into play when adding vector coordinates such as (x₁+x₂, y₁+y₂). Instead, the components of each vector are added separately without considering absolute values to get the resultant vector.
Step-by-step explanation:
The question appears to concern vector addition in the context of physics or mathematics. When adding vectors in the form of coordinates, such as (x₁+x₂, y₁+y₂), the absolute value does not play a role in this formula. The correct answer is d) No, absolute value is not involved in this formula. Instead, this depicts the addition of each respective component of two vectors. For instance, if two vectors are represented by their components as Ax and Ay, their resultant vector A can be found by adding the x-components and y-components separately, forming Ax + Ay = A. However, it's important to remember that this applies to vectors, not magnitudes; the sum of the magnitudes of the vectors is not necessarily equal to the magnitude of the resultant vector.
To give a concrete example, if you have a vector Ax representing 3 m east and another vector Ay representing 4 m north, their resultant vector A could represent a vector 5 m northeast. The relationship Ax + Ay = A holds true in this case, but the sum of the magnitudes, 7 m (3 m + 4 m), does not equal the magnitude of the resultant vector, which is 5 m.