If the sum of the first n terms of the series `sqrt3+sqrt75+sqrt243+sqrt507+..... `is `435sqrt3`, then n equals.

If the sum of the first n terms of the series sqrt(3)+sqrt(75)+sqrt(243)+sqrt(507)+..... is 435sqrt(3), then n equals.

if the sum of the first n terms of the series sqrt(3)+sqrt(75)+sqrt(243)+sqrt(507)+............ is 435sqrt(3) then n is equal to

The sum of n terms of the series 1/(sqrt1+sqrt3)+1/(sqrt3+sqrt5)+... is

What is the sum of n terms of the series sqrt2+sqrt8+sqrt18+sqrt32+..

Sum of first 'n' terms of the series sqrt(2)+sqrt(8)+sqrt(18)+… is ___.

The sum of 10 terms of the series sqrt2 + sqrt6 + sqrt18 +... is

Find the sum of first 20 terms of the GP sqrt3,2sqrt3,4sqrt3,8sqrt3 ,……..