The sum of the first n even natural number is
2n
n(n+1)
4n
n(n+2)
Answers
Answered by
1
Answer:
We know, Sum formula
S
n
=
2
n
[a+l]
a= First term
n= number of terms
a
n
=n
th
term
l= last term
Given sum =2+4+6+8+....+2n
=
2
n
(2+2n)=n(n+1).
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