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First-three-terms-of-the-sequence-given-by-a-1-1-a-n-a-n-1-2a-n-2-are-in-




Question Number 54468 by soksan last updated on 04/Feb/19
First three terms of the sequence given  by  a_1 =1, a_n =a_(nāˆ’1) +2a_(nāˆ’2)  are in
$$\mathrm{First}\:\mathrm{three}\:\mathrm{terms}\:\mathrm{of}\:\mathrm{the}\:\mathrm{sequence}\:\mathrm{given} \\ $$$$\mathrm{by}\:\:{a}_{\mathrm{1}} =\mathrm{1},\:{a}_{{n}} ={a}_{{n}āˆ’\mathrm{1}} +\mathrm{2}{a}_{{n}āˆ’\mathrm{2}} \:\mathrm{are}\:\mathrm{in} \\ $$

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