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inteleqti

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35 gamosaxulebaSi gamoyaviT sruli kvadrati da ipoveT am gamosaxulebisumciresi mnvneloba:a) 4x 2 +4x+9, b) a 2 +4a+1,g) 25x 2 -20x+12, d) 16a 2 -40a+50.36 giorgim 3 sT avtomobiliT imgzavra, 5 sT _ motocikliT; laSam _ 4sT avtomobiliT, 4 sT _ moticikliT. orive SemTxvevaSi avtomobilissiCqare iyo v 2, motociklis _ v 1, v 2>v 1. SeadareT giorgisa da laSasmier gavlili manZilebi.37 suraTze marTkuTxa samkuTxediagamosaxuli: a, b kaTetebiTa da chipotenuziT. vTqvaT, CD=h simaRlea,AD=d, DB=e.• piTgoras Teoremis gamoyenebiT h 2gamo saxeT jer b da d ricxvebiT, Semdeg_ e da a ricxvebiT.• SekribeT miRebuli tolobebi da gamosaxeT h 2 hipotenuziTa da d da e ricxvebiT.• h gamosaxeT d da e ricxvebiT _ daasabuTeTM rom marTkuTxasamkuTxedis marTi kuTxis wverodan gavlebuli simaRleL hipotenuzazekaTetebis gegmilebis (d-s da e-s) geometriuli saSualoa.• daasabuTeT, rom marTkuTxa samkuTxedis marTi kuTxis wverodangavlebuli mediana kaTetebis gegmilebis ariTmetikuli saSualoa.• gamoiyeneT dasabuTebuli debulebebi da warmoadgineT saSualoebsSoris (ariTmetikulsa da geometriuls Soris) Tanafardobis kideverTi geometriuli damtkiceba.38 vTqvaT, a, b da c dadebiTi ricxvebia. daasabuTeT:a + b + c $ ab + bc + acmiTiTeba. gamoiyeneT saSualoebs Soris kavSirebi a da b, ada c, b da c wyvilebisTvis.39 (jgufuri muSaoba) a) daasabuTeT sxvadasxva xerxiT: Tu a da bdadebiTi ricxvebia da a>b, maSin a 2 >b 2 (geometriuli xerxi, algebrulixerxi, sawinaaRmdegos daSvebis xerxi).b) daasabuTeT sxvadasxva xerxiT:• Tu a>b, maSin a 3 >b 3 .• Tu a 3 >b 3 , maSin a>b.g) vTqvaT, a, b, c, d dadebiTiricxvebia. daasabuTeT, Tu ad-bc

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