17+3= bao nhieu
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171000 = 2811391829027400931732551934605164335709939008896134392779037946871967835100469510841976271398729602670728875271227225143323718929452892187911383661665158632699262017614946963739146029379874086783044756457349492116004553784508286269283647495798480174044261292246662362713472283228486120774656462472380583219981857229034312117091477420875578726231253895638318343456660872718206165192110270143905221898754163576269276572010816095263260817220948340623595309376585372070867917852376683812342905243522761873465455367098276532974131106551815516189866603499268711175124332254334397749971821196186760872494614648061415417984698014634795042320517034078594796010868243042442485299107886672928059270876867171267831530399591031672244191840287541278128732015340120594923749342393074391429971432275154089658386186886562186949634708768160018523655064565357831590439918261830415973880667684156129451934826684090225384023806018779931512164684420366955776304834836676610481660531176740836683497882125178129029010048291340449676303450318069953578251754174731241852241210129097307136684712717421920425950537362157129714163094405913841999714664413656102204593696100992308399469046000758461236920885995622135010992460595646842399231411743861598856080001
vậy tần cùng của 17^1000 là 1
11-11-17+563x63 627
=11-11-17+35 822 001
=-17+35 822 001
=35 821 984
\(\frac{9}{5}:\frac{17}{15}+\frac{8}{5}:\frac{17}{15}\)
\(=\frac{17}{15}:\left(\frac{9}{5}+\frac{8}{5}\right)\)
\(=\frac{17}{15}:3\)
\(=\frac{17}{45}\)
\(\frac{9}{5}:\frac{17}{15}+\frac{8}{5}:\frac{17}{5}=\frac{9}{5}.\frac{15}{17}+\frac{8}{5}.\frac{15}{17}=\frac{15}{17}\left(\frac{9}{5}+\frac{8}{5}\right)=\frac{15}{17}.\frac{17}{5}=3\)
17+3=20
17+3=20