What is the expression for sum of the first n natural numbers?​

Answers 2

Answer:

The formula of the sum of first n natural numbers is S=n(n+1)2 .

Answer:

n^2+n/2

Step-by-step explanation:

a = 1

d= 1

sum = n/2*(2a +(n-1)d)

subsitute the values and you well get the answer

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    fifi

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