Question

The ratio of sum of n terms in two ap is 2n and n+1 find the ratio of 8 terms is

Answer 1

Step-by-step explanation:

given:-

ratio of their sum of first n terms=

S¹n: S²n= 2n : n+1

therefore ratio of the sum of their first 8 terms

S¹8 : s²8=. 2×8 : 8+1 =. 16 : 9

ans= 16 : 9