Question

is 0 divided by 0 = n
|n|≥o
is this true?

Answer 1

0 divided by 0 is undefined doe...

Answer 2

|n| >= 0
is true

the | | sign means "make what is inside positive if it's negative"
for example
| -1 | = 1

if you already have a positive number, it does not do anything:
| 1 | = 1

because | 0 | = 0 (0 is not negative, so the | | does not do anything)

for any number you put inside the | |, you will get either 0 or a positive number
we say that by writing
| x | >= 0
or

| n | >= 0

Answer 3

$$\huge a \div a = \dfrac{a}{a} = a • \dfrac{1}{a} =1$$

Let a = 0

$$\huge 0 \div 0 = \dfrac{0}{0} = 0 • \dfrac{1}{0} = 0$$

because 0 times any number is 0, not 1.

Therefore, division by 0 has no meaning in the set of real numbers.