212121Is a Rational Number

question 307

True/False

.212121...is a rational number.Please explain why this is true or false.

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Definitions:

Functional Value

The practicality and usefulness of a product or service as perceived by consumers.

Grammatical Errors

Mistakes made in the use of grammar, affecting the structure of sentences in a language.

Factual Errors

Mistakes or inaccuracies contained within information, data, or statements that are not in alignment with objective truth or reality.

Nativist View

The perspective that skills or abilities are innate and embedded within the organism from birth, rather than learned through experience.