Tài liệu Grid questions practice

ĐỀ TÀI :
Grid questions practice

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. 2. The mathematical function #(X, Y, Z) is defined as (X2 – Y2)/ Z2. #(7, 5, 6) = ? Use the pattern in the question. #(7, 5, 6) = (49 – 25)/36 = 24/36 = 2/3.