Complete the sentence below by making a choice from the 5 possibilities listed.

The sequence {sin n} is ...
Question 1 options:

A) increasing.
B) bounded from below only.
C) bounded from above only.
D) decreasing.
E) bounded from both above and below.

Respuesta :

Answer:

E) bounded from both above and below.

Step-by-step explanation:

Sequences

The given sequence is

[tex]a_n=\{sin\ n\}[/tex]

To obtain the terms of the sequence, we give n values from the natural numbers set, i.e.

[tex]n=\{1,2,3,4...\}[/tex]

The sequence is expanded as

[tex]\{sin\ 1,\ sin\ 2,\ sin\ 3,\ sin\ 4,\ ...\}[/tex]

Now we must recall some of the properties of the sine function: it's periodic and bounded from a minimum value (-1) to a maximum value (1), that is

[tex]-1\leq sin \ n\leq 1[/tex]

Thus, the correct answer is

E) bounded from both above and below.