Prove inequality 1 / (2 ^ 2) + 1 / (3 ^ 2) + + 1 / (n ^ 2) Prove inequality 1 / (2 ^ 2) + 1 / (3 ^ 2) + ··· + 1 / (n ^ 2)

Prove inequality 1 / (2 ^ 2) + 1 / (3 ^ 2) + + 1 / (n ^ 2) Prove inequality 1 / (2 ^ 2) + 1 / (3 ^ 2) + ··· + 1 / (n ^ 2)


1/(2^2)+1/(3^2)+···+1/(n^2)



Prove inequality 1 / 2 * 2 + 3 * 3 / 1 + 1/n*n


1/2*2+3*3/1+…… 1/n*n



Prove inequality 1 / 2.2 + 1 / 3.3.3 +... + 1 / N.N


Scaling method
n*n>n*(n-1)
1/(n*n)