Question

what is the value of 1²+2²+3²+......+10²? with full process.​

Answer 1

Answer:

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$<font color="blue">$(1²+2²+...) = 385

(2²+4²+6²+..) = (2²*1+2²*2²+2²*3²+...)

= 2²(1²+2²+3²+...) = 4*385=1540

Answer 2

Step-by-step explanation:

n(n+1) (2n+1) /6

so, n=10

= 10(10+1) (2(10) +1) /6

= 10*11*21/6

= 5*11*7

= 385