Question

1. вычислите 
3^-43-7
5^-11*5^9
(311)^4*111)^-3
6^2*24^-2

Answer 1

$3^{-4}/ 3^{-7}= 3^{3}=27$
$5^{-11}* 5^{9} =5^{-2}= frac{1}{25}$
$frac{3}{11}^{4} * frac{1}{11}^{-3} = frac{3^{4} }{11^{4} }* frac{ -1}{ 11^{-3}} = frac{-81}{11} =-7 frac{4}{11}$
$6^{2}* 24^-2= 36* frac{1}{576} = frac{1}{16}$