Question

Решите плиз, даю 35 баллов

Answer 1

$\frac{x^{6}* x^{-9} }{x^{-2}} = \frac{x^{-3}} {x^{-2} }=x^{-1} = \frac{1}{x} \\x=5\\\frac{1}{5} \\\\\\\frac{y^{-7}} {y^{-3}* y^{-9} } =\frac{y^{12}} {y^{7} }  = y^{5} \\y=-1/2\\(-1/2)^{5} = -1/32\\ \\\\(k^{-5})^{-3} * k^{-13} = k^{15} *k^{-13} = k^{2} \\k=0.25=1/4\\(1/4)^{2} = 1/16$