engineering recuitment AAI ATC Junior Executive 2025 Mock Test Series Mathematics Matrices Diagonal of a Square Matrix
यदि A = diag [3, - 5, 7] और B = diag [- 1, 2, 4] है, तो 2A + 3B का मान ज्ञात कीजिए।
1
diag [3, - 4, 26]
2
diag [- 3, 4, 26]
3
diag [3, 4, - 26]
4
diag [3, 4, 26]