engineering recuitment AAI ATC Junior Executive 2025 Mock Test Series Mathematics Matrices Diagonal of a Square Matrix
If A = diag [3, - 5, 7] and B = diag [- 1, 2, 4] then find the value of 2A + 3B ?
1
diag [3, - 4, 26]
2
diag [- 3, 4, 26]
3
diag [3, 4, - 26]
4
diag [3, 4, 26]