Answer:
If a vector is a linear combination of other vectors, it A. can be expressed as a sum of other vectors, each multiplied by a scalar coefficient.
Explanation:
A linear combination of vectors is a combination of vectors that have been scaled and added. If you have vectors v₁, v₂, ... vₙ in a subspace, and scalars c₁, c₂, ... cₙ, then a linear combination of these vectors can be represented by -
v = c₁v₁ + c₂v₂ + ... + cₙvₙ
Linear combinations can be used to decompose a vector, solve systems of linear equations, and much more.