Assertion: determinant's number | /r/HasProperty | a 1 b 2 − a 2 b 1
Facets:
Source sentences:
text: For example, given the system a 1 x + b 1 y = c 1 a 2 x + b 2 y = c 2 the determinant Δ of the system is the number Δ = a 1 b 2 − a 2 b 1 , and the values of the unknowns are given by