1. Let, a1= 3, a2= 4 and for n ≥ 3, an= 2an−1+ an−2, express anin terms of n. 2. Let, a1= 3, a2= 4 and for n ≥ 3, an= 2an−1+ an−2+ 5, express anin terms of n. 3. Let, a1= 3, a2= 4 and for n ≥ 3, an= 2an−1+ an−2+ n2+ 1, express anin terms of n. 4. Let, a1= 1, a2= 2, b1= 0, b2= 1, for n ≥ 3, an= 2an−1+ bn−1 for n ≥ 2 bn= bn−1+ an−1 express anin terms of n. 1
