Question

If e is a unit vector, prove that
(i) div(e.r)e=1
(ii) div[(e x r)x ē] = 0​

Answer 1

Answer:

10, 1948, the United Nations General Assembly (UNGA) adopted the Universal Declaration of Human Rights (UDHR) Article 25, which states that: “Everyone has the right to a standard of living adequate for the health and well-being of himself and of his family, including food, clothing, housing and medical care.