Question

1. In an AP, Sn=3n+5 then, the value of ‘d’ is:

A) 3

B) 5

C) -5

D) 8​

Answer 1

Answer:

$sn = 3n + 5 \\ s1 = 3 \times 1 + 5 = 8 \\ s2 = 3 \times 2 + 5 = 11 \\ s2 - s1 = d \\ 11 - 8 = d \\ 3 = d \\ hope \: it \: will \: help \: you$