Given that the $n^{th}$ term, $T_n$, of a sequence is $T_n = 56 - 4n$, find the $3^{rd}$ ter

Question

Given that the $n^{th}$ term, $T_n$, of a sequence is $T_n = 56 - 4n$, find the $3^{rd}$ term, the difference between the $15^{th}$ and the $5^{th}$ term, the lowest common multiple of the $10^{th}$ and the $11^{th}$ term.

Accepted Answer

(i) $44$. (ii) Positive difference $40$; ordered subtraction $T_{15}-T_5=-40$. (iii) $48$.

General Term of a Sequence

General Term of a Sequence

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