hayutiahmed08 hayutiahmed08 27-12-2022 Mathematics Answered 2. Which of the following is not define a sequence? A. an-n²+1 B. anan-1 +1 for n≥1, a=1 C. a ²2=3n+1 D. a-±1, a2-3, and an (an-1) (an-2), n≥3 in