practice problems pending

Q1. For any n>=1 prove that

1/1^2 + 1/2^2 ... 1/n^2 <= 2 - 1/n

S1.Using induction:
we need to show that 2 - 1/n + 1/(n+1)^2 <= 2 - 1/(n+1)
Rearrange to get:
1/(k+1)^2 <= 1/k(k+1)
H.P.

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