Question

То, что помечен красным

Answer 1

$((4 - log_{2}^{2}3) times log_{12}2 + log_{2}3) times {5}^{ log_{5}13 } = ((2 - log_{2}3)(2 + log_{2}3) times log_{12}2 + log_{2}3) times 13 =( ( log_{2}4 - log_{2}3)( log_{2}4 + log_{2}3) times log_{12}2 + log_{2}3) times 13 = (log_{2} frac{4}{3} times log_{2}12 times log_{12}2 + log_{2}3) times 13 = ( log_{2} frac{4}{3} times 1 + log_{2}3) times 13 = ( log_{2} frac{4}{3} + log_{2}3) times 13 = log_{2}( frac{4}{3} times 3 ) times 13 = log_{2}4 times 13 = 2 times 13 = 26$