Find the sum of first
5 term
of the AP 3. 7. 11
Answers
Answered by
1
Answer:
sum=55
Step-by-step explanation:
a=3
d=7-3=4
sum= n/2(2a+(n-1)d)
= 5/2(6+4×4)
=5/2(22)
= 55
Answered by
0
Answer:
Ans - 55
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