Question

1×1 + 2 × 2 + 3 × 3 + 4 × 4 + 5 × 5 ......... 50×50 is equal to​

Answer 1

Answer:

55

Step-by-step explanation:

1²+2²+3²+4²+......+50²

this represents sum of squares of first 50 natural

numbers..

formula for sum of squares of first n natural numbers is

$\frac{n(n + 1)(2n + 1)}{6}$

so n=5

$\frac{5(5 + 1)(2 \times 5 + 1)}{6}$

$\frac{5(6)(11)}{6}$

$55$

Here's your answer..!!!

Answer 2

Answer:

here is ur answer

this will help you