[" find the Sum upto n turms "],[+(1^(2)+2^(2))+(1^(2)+2^(2)+3^(2))+-1=-2]

Find the sum to n terms series 1^(2) + (1^(2) + 2^(2)) (1^(2) + 2^(2) + 3^(2)) + . . . . .

Find the sum to n terms of the series 1^(2)+(1^(2)+2^(2))+(1^(2)+2^(2)+3^(2))+.....

Find the sum to n terms : (1)/(2) + (3)/(2^(2)) + (5)/(2^(3)) +…+ (2n-1)/(2^(n))

Find the sum to n terms of the series: 1^(2)+(1^(2)+2^(2))+(1^(2)+2^(2)+3^(2))+

Find the sum till n terms: 1+(1^2+2^2)/2+(1^2+2^2+3^2)/3+...

Find the sum to n terms of the series : 1^(2)+(1^(2)+2^(2))+(1^(2)+2^(2)+3^(2))+ ….

Find the sum to n terms of each of the following series : (1^(2)) + (1^(2)+2^(2)) + (1^(2) + 2^(2) + 3^(2)) +…

Find the sum of n terms of each of the following 1^(2) + ((1^(2) + 2^(2))/(2)) + ((1^(2) + 2^(2) + 3^(2))/(3)) + …..