(Urca - CE) O número
![\sqrt[3]{ \frac{ {3}^{15} + {3}^{14} + {3}^{13} }{39} }](https://tex.z-dn.net/?f=+%5Csqrt%5B3%5D%7B+%5Cfrac%7B+%7B3%7D%5E%7B15%7D++%2B++%7B3%7D%5E%7B14%7D++%2B++%7B3%7D%5E%7B13%7D+%7D%7B39%7D+%7D+ "\sqrt[3]{ \frac{ {3}^{15} + {3}^{14} + {3}^{13} }{39} }")
é igual a:
a)27
b)9
c)3
d)81
e)10
Soluções para a tarefa
Respondido por
1
Resolução:
![\sqrt[3]{ \frac{ 3^{15}+ 3^{14}+ 3^{13} }{39} } \\ \\ \sqrt[3]{ \frac{ 3^{13}( 3^{2}+ 3^{1}+1) }{3.13} } \\ \\ \sqrt[3]{ \frac{ 3^{13}.13 }{3.13} } \\ \\ \sqrt[3]{ \frac{ 3^{13} }{3} } \\ \\ \sqrt[3]{ 3^{13} .3^{-1} } \\ \\ \sqrt[3]{ 3^{13-1} } \\ \\ \sqrt[3:3]{ 3^{12:3} }](https://tex.z-dn.net/?f=+%5Csqrt%5B3%5D%7B+%5Cfrac%7B+3%5E%7B15%7D%2B+3%5E%7B14%7D%2B+3%5E%7B13%7D+++%7D%7B39%7D+%7D++%5C%5C++%5C%5C++%5Csqrt%5B3%5D%7B+%5Cfrac%7B+3%5E%7B13%7D%28+3%5E%7B2%7D%2B+3%5E%7B1%7D%2B1%29+++%7D%7B3.13%7D+%7D+%5C%5C++%5C%5C++%5Csqrt%5B3%5D%7B+%5Cfrac%7B+3%5E%7B13%7D.13+%7D%7B3.13%7D+%7D++%5C%5C++%5C%5C++%5Csqrt%5B3%5D%7B+%5Cfrac%7B+3%5E%7B13%7D+%7D%7B3%7D+%7D+%5C%5C++%5C%5C++%5Csqrt%5B3%5D%7B+3%5E%7B13%7D+.3%5E%7B-1%7D++%7D++%5C%5C++%5C%5C++%5Csqrt%5B3%5D%7B+3%5E%7B13-1%7D+%7D+%5C%5C++%5C%5C++%5Csqrt%5B3%3A3%5D%7B+3%5E%7B12%3A3%7D+%7D+++++ "\sqrt[3]{ \frac{ 3^{15}+ 3^{14}+ 3^{13} }{39} } \\ \\ \sqrt[3]{ \frac{ 3^{13}( 3^{2}+ 3^{1}+1) }{3.13} } \\ \\ \sqrt[3]{ \frac{ 3^{13}.13 }{3.13} } \\ \\ \sqrt[3]{ \frac{ 3^{13} }{3} } \\ \\ \sqrt[3]{ 3^{13} .3^{-1} } \\ \\ \sqrt[3]{ 3^{13-1} } \\ \\ \sqrt[3:3]{ 3^{12:3} }")
bons estudos:
bons estudos:
Perguntas interessantes