engineering recuitment GATE ME 2023-24 Test Series Engineering Mathematics Linear Algebra System of Linear Equations
If λ3 + λ2 - 21 λ – 45 = 0 is a characteristic equation of coefficient matrix A3×3 in homogenous system AX = 0 then
adj(adj(A)) = kA
What is value of k1
15
2
- 45
3
45
4
30