Asked by VICTOR
Given that the first term of A.P is 7 and 10th term is twice the second term,calcute the sum of 28th term ?
Answers
Answered by
oobleck
a=7
a+9d = 2(a+d)
Solve for a and d.
Now, since a sum requires two addends, I do not know what "the sum of the 28th term" is supposed to be. But, if you meant the sum of the first 28 terms, then
S28 = 28/2 (2a+27d)
So plug and chug.
a+9d = 2(a+d)
Solve for a and d.
Now, since a sum requires two addends, I do not know what "the sum of the 28th term" is supposed to be. But, if you meant the sum of the first 28 terms, then
S28 = 28/2 (2a+27d)
So plug and chug.
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.