Is $- 3.96213$ $- 3.96213$ real number, rational number, whole number, Integer, Irrational number?

Question

1750 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2015-07-13T23:01:33

First thing we see, it's NOT a whole number or an integer.

It's a real number, because it doesn't have any square roots of negative numbers.

Since there is no $....$ behind the number (to show that more is coming), it is a rational number. It can be expressed as:

$-(396213/100000)$ which is a ratio.

Rational numbers are a sub-set of the real numbers, so if you are allowed one answer, you should choose for rational.

Is - 3.96213−3.96213 - 3.96213 real number, rational number, whole number, Integer, Irrational number?