The sum of the first 10 terms in an arithmetic progression is 50 and the sum of the next 10 terms is 250.Find the 15th term.
Share
The sum of the first 10 terms in an arithmetic progression is 50 and the sum of the next 10 terms is 250.Find the 15th term.
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Answer:
So 15 th term = 214
Step-by-step explanation :
By using given conditions,
(2) - (1) , we get,
Sub. d=22 in eq(1), we get,
2 a + 9 ( 22 ) = 10
=> 2 a = -188
=> a = - 94
So 15 th term
Hope helps u and mark brainliest