DeterminantHard

Question

If A = (aij) is a  4 × 4 matrix and cij is the co-factor of the element aij in Det (A) , then the expression a11c11 + a12c12 + a13c13 + a14 c14 equals-

Options

A.0
B.− 1
C.1
D.Det. A

Solution

-

Create a free account to view solution

View Solution Free
Topic: Determinant·Practice all Determinant questions

More Determinant Questions

If ᐃ1 = and ᐃ2 = then ᐃ1 is equal to -...If a, b, c are all different and = 0, then:...If the system of equations x + 2y + 3z = 4, x + py + 2z = 3, x + 4y + μz = 3 has an infinite number of solutions, t...Let m be a positive integer & Dr = (0 ≤ r ≤ m), then the value of is given by:...is equal to-...