Question

Find sum of the series,
1²+(1²+2²)+(1²+2²+3²)......... Till n

Answer 1

Step-by-step explanation:

1²+(1¹+2²)+(1¹+2²+3³)

1+(1+4)+(1+4+9)

1+5+14

20 is answers

Answer 2

Answer:

The answer is n²+ (n-1)²..... + 2²+ 1².

Step-by-step explanation:

Hope it helps...