Question

Sum of
first in terms of series root 2+ root 8+ root 18........ is​

Answer 1

Your answer is 392

Step-by-step explanation:

2 root 4

8 root 64

18 root 318

Answer 2

Answer:

Sum of first n terms = √2n(n+1)

Step-by-step explanation:

Series=√2+2√2+3√2+4√2...........          is an A.P with d=√2 and a=√2

Sum of first n terms= n/2[2a+(n-1)d]

                                = n/2[2√2+√2n-√2]

                                = n/2[√2{ 1+n}]

                               

Sum of first n terms = √2n(n+1) ⇒ ANSWER

HOPE THIS HELPS YOU.....................