Q12 of 98 Page 314

If A=is singular then k=?

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

= 0

Given,

= 0

1(-4k + 6) –k(-12 + 4) +3 (9 -2k)= 0

-4k + 6 +12k -4k + 27 -6k = 0

-2k +33 = 0

k = .

If A_α =then (A_α)²=?

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

If A =then adj A=?

If A =and A^-1=then x=?