Question

if sequence of sum of numbers of AP is 2, 5 ,9. find second and third term​

Answer 1

Step-by-step explanation:

according to the question sum of sequences are given so let consider a AP series, whose first term is A and common diff. is D

so series becomes

A, A+D, A+2D,........A+5D

now it is given

A+A+D=2

A+2D+A+3D=5

A+4D+A+5D=9

after solving above we get A=5/8

and D=3/4

so second term =11/8

third term= 17/8