Patrat perfect

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moldo
Euclid
Posts: 27
Joined: Sun Sep 30, 2007 1:48 pm
Location: Tg Mures

Patrat perfect

Post by moldo »

Aratati ca numarul \( N=44...488.....89 \) este patrat perfect

Nu stiu cum se scrie in latex dar sper sa se inteleaga: \( 44....44 \) de \( n \) ori si \( 88...8 \) de \( n-1 \) ori.
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mihai++
Bernoulli
Posts: 206
Joined: Wed Nov 28, 2007 8:08 pm
Location: Focsani

Post by mihai++ »

\( N=\frac{4}{9}(10^n+1)^2 \) si deci e patrat perfect.
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