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What is the first column of a matrix known as?

a) Row
b) Element
c) Determinant
d) Vector

1 Answer

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Final answer:

The first column of a matrix is referred to as a vector, which is a one-dimensional array of numbers within the matrix.

Step-by-step explanation:

The first column of a matrix is known as a vector. A vector is a one-dimensional array of numbers. In the context of matrices, option d) Vector is correct for describing the first column of a matrix. A row refers to a horizontal arrangement of elements, an element is an individual value within the matrix, and the determinant is a special number that can be calculated from a square matrix.

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