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Автор - anyta120212p6d2lb

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Автор - MrMiner1

187.

frac{a^{-9} }{a^{-2} a^{-5} } =frac{a^{-9} }{a^{-7} } =a^{-2} =(frac{1}{2} )^{-2} =frac{1}{(frac{1}{2})^{2} } =4

188.

frac{a^{-6} }{a^{-3} a^{-2} } =frac{a^{-6} }{a^{-5} } =a^{-1} =(frac{2}{3} )^{-1} =frac{1}{(frac{2}{3})^{1} } =1,5

189.

frac{(a^{2})^{3}}{a^{8} } =frac{a^{6} }{a^{8} } =frac{1}{a^{2} } =frac{1}{(frac{3}{4})^{2} } =1frac{7}{9}

190.

frac{x^{9}}{(x^{3})^{4} } =frac{x^{9} }{x^{12} } =frac{1}{a^{3} } =frac{1}{(frac{2}{3})^{3} } =3frac{3}{8}

191.

frac{1}{x^{-1} } *frac{1}{x^{-4} } =frac{1} {x^{-5} }=frac{1}{frac{1}{(-2)^{5} } } =(-2)^{5} =-32

192.

frac{1}{a^{-2} } *frac{1}{a^{-4} } =frac{1} {a^{-6} }=frac{1}{frac{1}{(-2)^{6} } } =(-2)^{6} =64

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Проверено экспертом

Автор - valenivan

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