Question

An A.P consist of three terms whose sum is 15 and sum of squares of the ex terms is 58 find the of A.P

Answer 1

let a be the first term and d be the common difference
then
S3 = 15 also
(a1)² + (a3)² = 38

now u can solve it

Answer 2

Step-by-step explanation:

Refer Upper Answer=>.....................<=