Question

qual a raiz de 621 ??

Answer 1

nao existe uma raiz exata  nesse a raiz seria = 24,91987159
ja que a 24 x 24 =576
e 25 x 25 = 625
podemos considerar como resposta 24,91

Answer 2

$621\ |\ 3\\207\ |\ 3\\{}\ \ 69\ |\ 3\\{}\ \ 23\ |\ 23\\{}\ \ \ 1\\\\621=3^2\cdot3\cdot23\\\\ \sqrt{621}= \sqrt{3^2\cdot3\cdot23}\\\\ \sqrt{621}=3\cdot \sqrt{3}\cdot \sqrt{23}$

$1\ \textless \ \sqrt{3} \ \textless \ 2\\\\10\ \textless \ \sqrt{300}\ \textless \ 20\\\\ 16^2=256\\17^2=289\\18^2=324\\\\Veja\ que\ \sqrt{300}\ est\'a\ mais\ pr\'oxima\ de\ 17\\\\Logo,\\\\ \sqrt{3}\simeq1,7$

$4\ \textless \ \sqrt{23}\ \textless \ 5\\\\40\ \textless \ \sqrt{2300}\ \textless \ 50\\\\ 46^2=2116\\47^2=2209\\48^2=2304\\\\ \sqrt{23}\simeq4,8\\\\ \sqrt{621}\simeq3\cdot1,7\cdot4,8\\\\ \boxed{\sqrt{621}\simeq24,5}$