The value of this expression is the subject of Hadamard's inequality and th
The value of this expression is the subject of Hadamard's inequality and the Cauchy–Binet formula. One method of calculating this expression involves cofactors and uses the Laplace expansion, and a type named for a Polish mathematician that can determine linear independence is known as the Wronskian. The area of a parallelogram is the absolute value of this expression, and invertible matrices have non-zero values for it. This expression can be used in Cramer's rule to solve a system of linear equations. For 10 points, name this value that can be computed as ad minus bc for a two by two square matrix.
The value of this expression is the subject of Hadamard's inequality and the Cauchy–Binet formula.
{determinant}