Q9 of 98 Page 314

If the matrix A =is singular then x=?

When a given matrix is singular then the given matrix determinant is 0.

= 0

Given, A =

= 0

_{4(3-2x) – 2(x+1) = 0}

_{12 – 8x -2x -2 =0}

_{10 -10x= 0}

_{10x = 0}

_{x= 1}

If=then

If A_α =then (A_α)²=?

If A =be such that A + A^’ = I, then α =?