Question

sumathi of all the frist n even natural number is​

Answer 1

Step-by-step explanation:

Sum of first n even natural numbers formula

Method 2 :- The idea is the sum of first n even number is n(n+1), for find the Average of first n even numbers divide by n, hence formula is n(n + 1) / n = ( n + 1). i.e. Average of first n even numbers is n+1.

Answer 2

Answer:

2,4,6,8, are the even natural number