Asked by Anonymous

The 9th term of an AP is 52 while the 12 term is 70 find the sum of the 20 terms.

6 years ago

Answered by Abu

answers

6 years ago

Answered by Damon

https://www.mathsisfun.com/algebra/sequences-sums-arithmetic.html

6 years ago

Answered by oobleck

a+8d = 52
a+11d = 70
Now find a and d, and then
S20 = 20/2 (2a+19d)

6 years ago

There are no AI answers yet. The ability to request AI answers is coming soon!

Submit Your Answer

We prioritize human answers over AI answers.

If you are human, and you can answer this question, please submit your answer.