given l=28,s=144, and there are total 9 terms. find a.
Answers
Answered by
9
s=n/2(a+l)
144=9/2(a+28)
144×2/9=a+28
16×2=a+28
32-28=a
a=4
144=9/2(a+28)
144×2/9=a+28
16×2=a+28
32-28=a
a=4
Answered by
2
Answer:
I hope it is helpful.............
Attachments:
Similar questions