Resolução:
$\require{cancel}\;\sqrt{\dfrac{17}{58}}\,\centerdot\,\sqrt{\dfrac{29}{34}}\,=\,\sqrt{\dfrac{17}{58}\,\centerdot\,\dfrac{29}{34}}\,$ $=\,\sqrt{\dfrac{17\,\centerdot\,29}{58\,\centerdot\,34}}\,=\,\sqrt{\dfrac{\cancel{17}\,\centerdot\,\cancel{29}}{2\,\centerdot\,\cancel{29}\,\centerdot\,2\,\centerdot\,\cancel{17}}}\,$ $=\,\sqrt{\dfrac{1}{2\,\centerdot\,2}}\,=\,\sqrt{\dfrac{1}{4}}\,=\,\dfrac{\sqrt{1}}{\sqrt{4}}\,=\,\dfrac{1}{2}\;$
Resposta: