Question

Function f(x,y) is continuous at origin (1 Point) ​

Answer 1

Answer:

True

It's continuous function.

hope it helps❤

Answer 2

A concave lens is a lens that possesses at least one surface that curves inwards. It is a diverging lens, meaning that it spreads out light rays that have been refracted through it. A concave lens is thinner at its centre than at its edges, and is used to correct short-sightedness (myopia).