Question

Find the terms in A.p 7.10.13....43

Answer 1

given that

a =7

a2 = 10

d = 10 -7 = 3

a^n =a +(n-1 )d

43 = 7+ (n-1) × 3

43 - 7 = (n-1) ×3

36 /3 = ( n-1)

12 = n-1

12 +1 =n

n =13