The sum of n terms of the AP √2, √8, √18, √32, … is
A. 1
B. 2n(n + 1)
C. \(\frac {1}{2}\)n(n + 1)
D. \(\frac{1}{\sqrt{2}}\)n(n + 1).
Answer:D
The sum of n terms of the AP √2, √8, √18, √32, … is
A. 1 B. 2n(n + 1) C. \(\frac {1}{2}\)n(n + 1) D. \(\frac{1}{\sqrt{2}}\)n(n + 1).