Consider the matrix . This matrix .Question 27Select one:Select one:a.is idempotent but not symmetric.b.is symmetric but not idempotent.c.does not have a determinant.d.None of the other answers are correct.e.is both symmetric and idempotent.

Consider the matrix . Which of the following statements is correct?Question 1Select one:Select one:a.None of the other statements are correct.b.The matrix is invertible and its determinant is not equal to zero.c.The matrix is not invertible and its determinant is not equal to zero.d.The matrix is not invertible and its determinant is equal to zero.e.The matrix is invertible and its determinant is equal to zero.

If A =2 2 41 3 41 2 x      is an idempotent matrix then

Which of the following is/ are TRUE?Determinant evaluated across any row or column is same.Determinant of a Identity matrix () is 1.If all the elements of a row (or column) are zeros, then the value of the determinant is zero.a.1 and 3 onlyb.3 onlyc.All of the aboved.None

Which among the following statements is not true?

What type of matrix has 1s on the main diagonal and 0s elsewhere? a. Zero matrix b. Symmetric matrix c. Diagonal matrix d. Identity matrix