Tài liệu GRE Issue Topics

ĐỀ TÀI :
GRE Issue Topics
1. A determinant of [a, b, c, d] is defined as (a x d – b x c). What is the value of the determinant of [2.5, 2, 1, 5]? According to the rules of the determinant in the question, the result of the determinant of [2.5, 2, 1, 5] = (2.5 x 5 – 2 x 1) = 10.5.