Question

решите 1 и 2 пожалуйста

Answer 1

$(- frac{7}{8} -1 frac{1}{6})*2,4 = (-frac{21}{24} - frac{28}{24} )* frac{24}{10} = - frac{21+28}{24}* frac{24}{10} = -frac{49*24}{24*10} =- frac{49}{10}= \ =-4,9$

$3 ^{frac{5}{6} }*9^{ frac{1}{12} } = 3 ^{frac{5}{6} }*3^{ frac{2}{12} }= 3 ^{frac{5}{6} }*3^{ frac{1}{6} }= 3^{ frac{5}{6} + frac{1}{6} } = 3^1 = 3$