Question Number 14452 by christine last updated on 31/May/17
Commented by RasheedSindhi last updated on 01/Jun/17
$$\mathrm{The}\:\mathrm{question}\:\mathrm{is}\:\mathrm{invisible}! \\ $$$$\mathrm{Pl}\:\mathrm{type}\:\mathrm{it}. \\ $$
Commented by Joel577 last updated on 01/Jun/17
$$\mathrm{Consider}\:\mathrm{the}\:\mathrm{recurrence}\:\mathrm{relation}\:{a}_{{k}} \:=\:{a}_{{k}−\mathrm{1}} \\ $$$$\mathrm{Find}\:\mathrm{the}\:\mathrm{general}\:\mathrm{function}\:\mathrm{for}\:\mathrm{the}\:\mathrm{sequence}\:\left\{{a}_{{k}} \right\} \\ $$
Commented by mrW1 last updated on 01/Jun/17
$${it}\:{seems}\:{to}\:{be}\:{a}_{{k}} =\mathrm{4}{a}_{{k}−\mathrm{1}} \\ $$
Answered by mrW1 last updated on 01/Jun/17
$${a}_{{k}} ={a}_{\mathrm{1}} ×\mathrm{4}^{{k}−\mathrm{1}} \\ $$