Determine the divergence of the following vector fields at given points–
(i) vector A = yzi + 4(x +y)j + xyz at(1, -2, 1)
(ii) vector B = ρz sin ϕρ + 5ρz cosϕ ϕˆ + z zˆ at [5, π/2, 1]
(iii) vector C = 2r sinθ cos ϕ r + cosϕ θ + r ϕ at [1, π/3, π/3]
In cartesion
= 2.6 + 0.288
= 2.88
