Find the sum of the following series: `3/(sqrt5)+4/sqrt(5)+…` 25 terms

Find the sum of the following geometric series: sqrt(7),sqrt(21),3sqrt(7),quad rarr n terms.

Find the sum of the following geometric series: sqrt(2)+(1)/(sqrt(2))+(1)/(2sqrt(2))+rarr8 terms

Find the sum of the series 2sqrt3 , 2sqrt2 , 4/(sqrt3) , ….

Find the sum of each of the following infinite series : sqrt(2)-1/sqrt(2)+1/(2sqrt(2))-1/(4sqrt(2))+...oo

Find the sum of the following series: 2.3+3.4+ ……….to n terms

Find the sum of the following series: 5+55+555+rarr n terms.

Find the sum of the following series: 1+5+3+9+5+13+7+...20 terms