Question

First 4 term of sequence an=2n+3

Answer 1

Answer:

11, put straight n= 4 and you get it.

however AP is as follows

an= 5+ (n-1)×2

how?

Equate ao + n-1 *d = 3+ 2n

ao -d + nd = 3+2n

an = 5 +(n-1)2= 11

and its a straight answer.

first term is a0=5

and D is 2

Answer 2

HOPE THAT THIS ANSWER HELPS U....✌❤