5. The recursively dened sequence a1 = 2 and on\" = an + 1 is A. bounded but not monotone. bounded and monotone. B. C. unbounded and monotone. D. unbounded and not monotone. 6. When we solve the differential equation (x + 4)y' = a: + 2y using the method of integrating factors, the integrating factor will be A. 721nm: + 4' B. In Ix + 4| 1 C. (:L:+4)2 1 {it 4)2 D