a23 = -288
Sequence:
- A sequence is an enumerated group of items in mathematics where repetitions are permitted and order is important.
- Similar to a set, it has members (also called elements, or terms).
- The length of the series is the number of elements (potentially infinite).
- In contrast to a set, the same items might appear more than once in a sequence at various points, and unlike a set, the order is important.
- A sequence can be described formally as a function from natural numbers (the positions of the sequence's elements) to the items at each of those positions.
- An indexed family, which is a function from an index set that may not be a set of numbers to another set of elements, can be thought of as a generalization of the idea of a sequence.
Solution -
As the sequence is going by [tex]16[/tex].
∴ [tex]-18[/tex] × [tex]16=-288[/tex]
Therefore, [tex]a23=-288[/tex].
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