c.
One of these operations named after Vandermonde can be computed to give the product of pairwise differences of a set of numbers, and the Wronskian one will show independence of functions. Doing this operation upon vectors of a parallelogram yields its area. The solutions to a set of linear equations can be expressed as quotients of these entities, according to (*) Cramer's Rule. This value may be calculated for larger inputs through "expansion by minors." For ten points, name this value associated with a square matrix, which for a 2-by-2 matrix has value a times d minus b times c.
One of these operations named after Vandermonde can be computed to give the product of pairwise differences of a set of numbers, and the Wronskian one will show independence of functions.
matrix {determinant}