an=xn/n!
A numeric sequence is a list of numbers in a particular order. A non-numeric sequence is an ordered list of something other than numbers.
In a decreasing sequence that approaches zero, each term is less than or equal to the previous term and converges to zero. Since the sequence is decreasing and approaches zero, the terms cannot dip below zero; otherwise, the sequence would not be approaching zero but would instead be diverging negatively. Therefore, every term must be greater than or equal to zero, as they cannot be less than zero while still converging to zero. Thus, all terms in the sequence are non-negative.
It is not possible to answer the question since a non linear sequence could be geometric, exponential, trigonometric etc.
If the sequence is non-linear, you need to establish how it is defined.
a diverging mirror is a convex mirror.
Concave and Diverging
These are called the second differences. If they are all the same (non-zero) then the original sequence is a quadratic.
A diverging ray is a ray of light that spreads out as it travels away from its source. It is characterized by its tendency to move apart rather than converge to a single point. In optics, a diverging ray can be produced by a concave lens or a diverging mirror.
Continous beamSimply supported beamCantilever beamFixed beamPropped cantilever beam
For apex learning people the answer is diverging
A diverging lens is thickest at its center and gets thinner towards the edges.
Why not? It is possible. Try to search for "Non-coherent sequence detection"