Please send the solution to the problem given in the attachment.

i hope you will like both the links. see these amd tell me ur response

see this link also. https://math.stackexchange.com/questions/70493/how-do-i-convert-a-vector-field-in-cartesian-coordinates-to-spherical-coordinate

see this video completely https://youtu.be/Ya1S1uqgYP4