Question

given (n-2),(n+1) (2n+3) are in AP OR NOT CHECK​

Answer 1

a1 = (n - 2)

a2 = (n + 1)

a3 =( 2n + 3)

a2 - a1

= n + 1 - ( n - 2)

= n + 1 - n + 2

= n - n + 3

= 3

a3 - a2

2n + 3 - ( n + 1)

2n + 3 - n - 1

2n - n + 3 - 1

n + 2

So they are not in A. P