Question

the nth term of even natural number is​

Answer 1

Step-by-step explanation:

First n even natural numbers are 2,4 ,6 ,………., 2n which forms an AP. Here, a = 2, d = 4 - 2 = 2. By using the formula ,Sum of nth terms , Sn = n/2 [2a + (n – 1) d] Sn = n/2 [2(2) + (n -1) 2] Sn = n/2 [4 + 2n – 2]