Respostas

2014-01-19T17:59:13-02:00
Log \sqrt{7} base 7 =X

Sabemos que  \sqrt{7} =7^ \frac{1}{2}

7^x=7^ \frac{1}{2}

X= \frac{1}{2}
12 4 12
2014-01-19T18:08:21-02:00
         √7                             x                                    x           1/2
  Log  7    =   x ==>          7         =          √7    ==> 7      =    7          ==> x = 1/2
3 4 3