Question

arithmetic a1=3 r=2 first 5 terms

Answer 1

An = A1+(n-1)*r

Answer 2

explain please(:

Answer 3

thats the general formula, with that you can find any term
A1 = 3
A2 = 3 + (2-1)*2 = 5
A3 = 3 +(3-1)*2 = 7
....
get the idea

Answer 4

yah(: thanks!