A sequence of numbers can be thought of as a function, where f(n) represents the nth term of sequence. Which could be the domain of this function? a) positive integer
b)irrational number
c)rational number
d) positive real numbers

Option A is correct. Since the number of terms is positive values, hence the domain for the nth terms of the sequence must be positive integers.

Sequencesare series of numbers arranged in a definite pattern.

Assuming the sequence is an arithmetic sequence, the nth term is expressed as

n is the number of terms which is our concern in order to determine the nature of the domain.

Since the number of terms is positive values, hence the domain for the nth terms of the sequence must be positive integers.

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