engineering recuitment BARC Stipendiary Trainee Category I 2023 Mock Test Engineering Mathematics Calculus Vector Calculus
If, \(\overrightarrow F = 50\mathop x\nolimits^3 y\widehat i - 8\mathop z\nolimits^2 y\widehat j + \mathop x\nolimits^2 z\widehat k\), then the value of \(\nabla .\left( {\nabla \times \overrightarrow F } \right)\)
1
65
2
64
3
57
4
0