Question

The given matrix is invertible ? first row ( -1 0 0 ) second row ( 0 2 0 ) third row ( 0 0 1/3 )

Answer 1

Yes it is

Explanation:

Because the determinant of the matrix is not equal to zero the Matrix is invertible.

Actually the determinant of the matrix is

`det(A)=(-1)(2)(1/3)=-2/3`