CBSE Class 11-science Answered
Link to question :
Asked by buttercup | 09 Mar, 2012, 08:02: PM
Expert Answer
In this question it can be seen that a1 = 15 , a2 < 13.5 , a3 < 12 ..........
Now since sum of the squares of first eleven terms is 990 , this means that there are some neagtive nos as well
So , we get
a1 = 15 , a2 = 12 , a3 = 9 , a4 = 6 , .......... , a10 = -12 , a11 = -15
Now sum of all the terms is 0 , So their average is 0
Answered by | 11 Mar, 2012, 03:12: PM
Application Videos
Concept Videos
CBSE 11-science - Maths
Asked by cubesneha.2005 | 07 Feb, 2024, 12:55: AM
ANSWERED BY EXPERT
CBSE 11-science - Maths
Asked by hridayjayaram085 | 31 Jan, 2024, 10:53: PM
ANSWERED BY EXPERT
CBSE 11-science - Maths
Asked by prashantbharati75 | 29 Sep, 2023, 09:30: AM
ANSWERED BY EXPERT
CBSE 11-science - Maths
Asked by Bhaveshkr211 | 30 Jul, 2023, 05:20: PM
ANSWERED BY EXPERT
CBSE 11-science - Maths
Asked by sakshirana374 | 24 Jul, 2022, 05:39: PM
ANSWERED BY EXPERT
CBSE 11-science - Maths
Asked by sanjuktamukherjee165 | 24 Oct, 2021, 11:04: AM
ANSWERED BY EXPERT
CBSE 11-science - Maths
Asked by rahulksinha200 | 16 Oct, 2021, 02:08: PM
ANSWERED BY EXPERT
CBSE 11-science - Maths
Asked by Vibhorjarora798 | 21 Aug, 2021, 05:43: PM
ANSWERED BY EXPERT
CBSE 11-science - Maths
Asked by shivangkarol | 16 Jun, 2021, 01:18: PM
ANSWERED BY EXPERT