Question

Which of the following is an arithmetic progression?
(1) n2 + n + 1
(2) n² + 2n + 3
(3) n3 + 1
(4) 2n + 3​

Answer 1

Answer:

1) n2+n+1

2) n2+2n+3

Step-by-step explanation:

because in arithmetic progression

first value is always square &

second value is any number

third value is only number

Answer 2

Answer:

2n+3

Step-by-step explanation:

2n+3