write the arithemetic sequence with first term 8 and common difference 3.
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Answered by
2
Answer:
Step-by-step explanation:
the sequence is 8 ,11,14 ,17...
Answered by
1
Step-by-step explanation:
in arithmetic series,
first term is a=8
common difference is d=4
t
n
=a+(n−1)d
Sum of arithmetic series of n terms is
2
n
(t
1
+t
n
)
⇒
2
n
(a+a+(n−1)d)=2808
⇒
2
n
(2×8+(n−1)×4)=2808
⇒(4n+12)n=2808×2
⇒n
2
+3n−1404=0
so n=36
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