Ερωτηση για περίοδο

Question

&Kappa;&alpha;&lambda;&eta;&sigma;&pi;έ&rho;&alpha; &sigma;&alpha;&sigmaf; &gamma;&iota;&alpha;&tau;&rho;έ. &Tau;&omicron;&nu; &Nu;&omicron;έ&mu;&beta;&rho;&iota;&omicron; &pi;ή&gamma;&alpha; &gamma;&iota;&alpha; &upsilon;&pi;&epsilon;&rho;&eta;&chi;&omicron; ( ό&lambda;&alpha; &kappa;&alpha;&lambda;&alpha;) &kappa;&alpha;&iota; &gamma;&iota;&alpha; &tau;&omicron; &kappa;&alpha;&theta;&iota;&epsilon;&rho;&omega;&mu;έ&nu;&omicron; &tau;&epsilon;&sigma; &pi;&alpha;&pi; &pi;&omicron;&upsilon; &beta;&gamma;ή&kappa;&epsilon; &kappa;&omicron;&lambda;&pi;&iota;&tau;&iota;&delta;&alpha; &tau;&rho;&alpha;&chi;&eta;&lambda;&eta;&tau;&iota;&delta;&alpha;. &Pi;ή&rho;&alpha; &tau;&eta;&nu; &alpha;&pi;&alpha;&rho;&alpha;ί&tau;&eta;&tau;&eta; &alpha;&gamma;&omega;&gamma;ή &kappa; ό&lambda;&alpha; &kappa;&alpha;&lambda;&alpha;... &Alpha;&pi;ό &epsilon;&kappa;&epsilon;ί&nu;&omicron; &tau;&omicron;&nu; &mu;ή&nu;&alpha; &mu;έ&chi;&rho;&iota; &kappa;&alpha;&iota; &sigma;ή&mu;&epsilon;&rho;&alpha; &pi;&alpha;&rho;&alpha;&tau;&eta;&rho;ώ &gamma;&epsilon;&nu;&iota;&kappa;ά &mu;&epsilon;ί&omega;&sigma;&eta; &tau;&eta;&sigmaf; &delta;&iota;ά&rho;&kappa;&epsilon;&iota;&alpha;&sigmaf; &pi;&epsilon;&rho;&iota;ό&delta;&omicron;&upsilon;, &mu;&epsilon;ί&omega;&sigma;&eta; &rho;&omicron;ή&sigmaf; ( &delta;&epsilon;&nu; &alpha;&lambda;&lambda;ά&zeta;&omega; &tau;ό&sigma;&omicron; &sigma;&upsilon;&chi;&nu;ά &sigma;&epsilon;&rho;&beta;&iota;έ&tau;&alpha; ό&sigma;&omicron; &pi;&alpha;&lambda;&iota;&alpha;) &kappa;&alpha;&iota; &mu;&pi;&omicron;&rho;&epsilon;ί &tau;&eta;&nu; 3&eta; &mu;&epsilon;&rho;&alpha; &nu;&alpha; &delta;&epsilon;ί&chi;&nu;&epsilon;&iota; ό&tau;&iota; &tau;&epsilon;&lambda;&epsilon;&iota;ώ&nu;&epsilon;&iota; &kappa; &tau;&eta;&nu; &epsilon;&pi;ό&mu;&epsilon;&nu;&eta; &mu;έ&rho;&alpha; &nu;&alpha; &delta;&omega; &pi;ά&lambda;&iota; &kappa;ό&kappa;&kappa;&iota;&nu;&omicron; &alpha;ί&mu;&alpha;.. &delta;&eta;&lambda;&alpha;&delta;ή &kappa;&rho;&alpha;&tau;&alpha;&epsilon;&iota; 5 &mu;έ&rho;&epsilon;&sigmaf; &alpha;&lambda;&lambda;ά έ&chi;&omega; &lambda;ί&gamma;&omicron; &alpha;ί&mu;&alpha;... &Nu;&alpha; &sigma;&eta;&mu;&epsilon;&iota;ώ&sigma;&omega; &omicron;&tau;&iota; &epsilon;&chi;&omega; &sigma;&tau;&alpha;&theta;&epsilon;&rho;&omicron; &kappa;&upsilon;&kappa;&lambda;&omicron;.. Έ&kappa;&alpha;&nu;&alpha; &omicron;&rho;&mu;&omicron;&nu;&omicron;&lambda;&omicron;&gamma;&iota;&kappa;&epsilon;&sigmaf; &tau;&omicron;&nu; &Delta;&epsilon;&kappa;έ&mu;&beta;&rho;&eta; ό&lambda;&alpha; &kappa;&alpha;&lambda;ά... &Pi;ή&gamma;&alpha; &kappa; &sigma;&epsilon; ά&lambda;&lambda;&eta; &gamma;&upsilon;&nu;&alpha;&iota;&kappa;&omicron;&lambda;&omicron;&gamma;&omicron; &tau;&omicron;&nu; &Phi;&lambda;&epsilon;&beta;ά&rho;&eta; &pi;&omicron;&upsilon; &mu;&omicron;&upsilon; έ&kappa;&alpha;&nu;&epsilon; &pi;ά&lambda;&iota; &upsilon;&pi;&epsilon;&rho;&eta;&chi;&omicron; ό&lambda;&alpha; &kappa;&alpha;&lambda;ά. &Tau;ώ&rho;&alpha; &tau;&omicron;&nu; &Mu;ά&iota;&omicron; &pi;ή&gamma;&alpha; &sigma;&epsilon; &epsilon;&nu;&delta;&omicron;&kappa;&rho;&iota;&nu;&omicron;&lambda;&omicron;&gamma;&omicron; &gamma;&iota;&alpha;&tau;ί έ&chi;&omega; &upsilon;&pi;&omicron;&theta;&upsilon;&rho;&epsilon;&omicron;&epsilon;&iota;&delta;&iota;&sigma;&mu;&omicron; &mu; έ&kappa;&alpha;&nu;&epsilon; &pi;ά&lambda;&iota; &omicron;&rho;&mu;&omicron;&nu;&omicron;&lambda;&omicron;&gamma;&iota;&kappa;&epsilon;&sigmaf; &phi;&omicron;&upsilon;&lambda; &omicron;&lambda;&alpha; &phi;&upsilon;&sigma;&iota;&omicron;&lambda;&omicron;&gamma;&iota;&kappa;&alpha;.... &Pi;&rho;έ&pi;&epsilon;&iota; &nu;&alpha; &epsilon;&lambda;έ&gamma;&xi;&omega; &kappa;ά&tau;&iota; ά&lambda;&lambda;&omicron; ή &alpha;&pi;&lambda;ά &pi;&lambda;έ&omicron;&nu; έ&tau;&sigma;&iota; &epsilon;ί&nu;&alpha;&iota; &omicron; &kappa;ύ&kappa;&lambda;&omicron;&sigmaf; &mu;&omicron;&upsilon;; &mu;ή&pi;&omega;&sigmaf; &nu;&alpha; &xi;&alpha;&nu;&alpha;&kappa;ά&nu;&omega; &upsilon;&pi;&epsilon;&rho;&eta;&chi;&omicron;; &sigma;&alpha;&sigmaf; &epsilon;&upsilon;&chi;&alpha;&rho;&iota;&sigma;&tau;ώ &epsilon;&kappa; &tau;&omega;&nu; &pi;&rho;&omicron;&tau;έ&rho;&omega;&nu;