Given that the ${n}^{\mathrm{th}}$ term, ${a_n}$, of a sequence is ${a_n = 17 - 3n}$, find the

Question

Given that the ${n}^{\mathrm{th}}$ term, ${a_n}$, of a sequence is ${a_n = 17 - 3n}$, find the ${12}^{\mathrm{th}}$ term, the difference between the ${16}^{\mathrm{th}}$ term and the ${7}^{\mathrm{th}}$ term.

Accepted Answer

(i) $-19$. (ii) Ordered subtraction $a_{16}-a_7=-27$; positive difference $27$.

Terms and Differences in a Sequence

Terms and Differences in a Sequence

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