find the sum of series 6 + 9 +12 .....upto 35 terms
Answers
Answered by
0
Answer:
26 + 35
= 61 answer...hope its help you
Answered by
1
Answer:
1995
Step-by-step explanation:
As the difference between the terms is 3 ,we do AP
using formula S = 1/2(2a+ d(n-1))n
where
S is the sum
a is first term(6)
d is diff btwn terms(3)
n is the number of terms(35)
S = 1/2(2a+ d(n-1))n
S=1/2(2*6 +3(35-1))35
S=1/2(114)35
S=(57)*35
S=1995
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