Задание

Найдите показатели степеней:

\(\displaystyle \left(\frac{1}{9}\right)^{5}\cdot \left(\frac{1}{9}\right)^{8}\cdot \left(-\frac{1}{4}\right)^3\cdot \left(-\frac{1}{4}\right)^{19}=\left(-\frac{1}{4}\right)\)
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\(\displaystyle \cdot \,\, \left(\frac{1}{9}\right)\)
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