Mathematical calculation 1 ^ 3 + 2 ^ 3 + +Calculation method and formula of 100 ^ 3

Mathematical calculation 1 ^ 3 + 2 ^ 3 + +Calculation method and formula of 100 ^ 3


1^3+2^3+…… +n^3=[n(n+1)/2]^2
1^3+2^3+…… +100^3=(100*101/2)^2=5050^2=25502500



1, 3, 2, 6, 4, (), (), 12, ()


1,3,2,6,4,( 9 ),(8 ),12,16,……
law:
Odd number terms: 1, 2, 4, 8, 16,... The latter term is twice of the former;
Even number terms: 3, 6, 9, 12,... The latter is 3



Fill in the numbers according to the rules: 1 / 2, 1 / 3, 2 / 4, 2 / 6, 4 / 8, 3 / 9, (), 4 / 12


8/16
Odd 2 / 4 / 8
Even items 1 / 3 2 / 6 3 / 9 4 / 12