Question

exercitiul cu logaritm​

Answer 1

$log_{2}( \sqrt{7} + \sqrt{3} ) + log_{2}( \sqrt{7} - \sqrt{3} ) \\ log_{2}(( \sqrt{7} + \sqrt{3} )( \sqrt{7} - \sqrt[]{3}) ) \\ log_{2}(( \sqrt{7} ) {}^{2} - ( \sqrt[]{3} ){}^{2} ) \\ log_{2}(7 - 3) = log_{2}(4) = log_{2}(2 {}^{2} ) = 2$

Era o mica greseala la ex dat.Bafta