Yes.
real number
because ther is no decimal and negative sign in it
No, there is no smallest decimal number. Decimal numbers represent real numbers and between any two real numbers there are infinitely many other real numbers. So, there are infinitely many decimal numbers between 0 and your 1.21: each one will be smaller than 1.21
No, there is no smallest decimal number. Decimal numbers represent real numbers and between any two real numbers there are infinitely many other real numbers. So, there are infinitely many decimal numbers between 0 and your 1.02: each one will be smaller than 1.02
All real numbers have a decimal representation. Rational numbers have decimal representations that terminate or repeat infinitely. Irrational numbers have decimal representations that are non-terminating and non-repeating.
Decimals are real. They can be rational or irrational.
Yes, every real number can be represented as a decimal. This includes both rational numbers, which can be expressed as terminating or repeating decimals, and irrational numbers, which have non-repeating, non-terminating decimal representations. However, the way these numbers are represented can vary, with some requiring an infinite number of decimal places. Therefore, while all real numbers have decimal representations, the nature of those representations differs based on the type of number.
Any real number can be represented as a decimal number.
Any decimal number is a real number.
2 is a real number.
A real number. Or, the decimal representation of a real number.
Any real number has an equivalent decimal representation.