Let be a root of the equation x^2+x+1=0 and the matrix A= 1 3 bmatrix 1&1&1 1& & ^2 1& ^2& ^4 bmatrix , then...

Question

Let be a root of the equation x^2+x+1=0 and the matrix A= 1 3 bmatrix 1&1&1 1& & ^2 1& ^2& ^4 bmatrix , then the matrix A^ 31 is equal to

Accepted Answer

(B)

JEE Main 2020 Mathematics question