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Dobrý večer,
Prosím vás vedel by mi niekto pomôcť s dvomi príkladmi?
1,2
Ďakujem za každú pomoc
Konvexný štvoruholník ABCD so stranou AB dĺžky 5 cm, so stranou BC dĺžky 3 cm a s uhlom BCD veľkosti 60° je súmerný podľa uhlopriečky AC. Bod E je pätou kolmice z vrcholu B na stranu AD a F je pätou…
Dobrý deň ako vypočítate kolko 96% h2so4 potrebujete na pripravu 1 M 0,1 dm3 vodneho roztoku. dakujem
doučma.sk
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