Math, asked by kbadlia44, 2 months ago

The sum ot 10th 11th and 12th term of AP with 21 term
is 129 and the sum of last three term is 237. find the
arithmetic progression​

Answers

Answered by 68998
0

Answer:

The sum of 10th, 11th and 12th term is 129. So, the middle three terms are = (a11 - 1),(a11) and (a11 + 1) = a10, a11 and a12. sum of the 10t, 11th and 12th terms is 129. Also given that the sum of the last three terms is 237.

Previous Question
Next Question
Similar questions
English, 1 month ago
3) The architect has made design for new bunglow(Turn into past continuous Tense)​...
English, 1 month ago
what is the meaning of [ the fleet of sheep has returned to the part ] [ correct the error and rewrite the sentences ]...
Math, 1 month ago
1) P(t)=2 +t +2 + t³ + t³​...
Physics, 2 months ago
calculate the wavelengths of sound at the extremes of the audible range,20 and 20,000Hz in 30.0C air assume that the frequency values are accurate to two significant figures?​
Math, 2 months ago
who will answer will mark as brainlist​...
Social Sciences, 9 months ago
article on world popoulation...
History, 9 months ago
from whom did America get Independence​...
Physics, 9 months ago
If sin = 1/3, then tan =​...