Ответ: 1/27
[tex] \frac{ {( - 27)}^{ - 12} \times {9}^{5} }{ {81}^{ - 4} \times {3}^{ - 7} } = \frac{ {81}^{4} \times {3}^{7} \times {9}^{5} }{ {27}^{12} } = \frac{ ({ {3}^{4}) }^{4} \times {3}^{7} \times { {(3}^{2} )}^{5} }{ { {(3}^{3} )}^{12} } = \frac{ {3}^{16} \times {3}^{7} \times {3}^{10} }{ {3}^{36} } = \frac{ {3}^{33} }{ {3}^{36} } = \frac{1}{ {3}^{3} } = \frac{1}{27} [/tex]
Ответ:
1/27
Объяснение: на фото
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Ответ: 1/27
[tex] \frac{ {( - 27)}^{ - 12} \times {9}^{5} }{ {81}^{ - 4} \times {3}^{ - 7} } = \frac{ {81}^{4} \times {3}^{7} \times {9}^{5} }{ {27}^{12} } = \frac{ ({ {3}^{4}) }^{4} \times {3}^{7} \times { {(3}^{2} )}^{5} }{ { {(3}^{3} )}^{12} } = \frac{ {3}^{16} \times {3}^{7} \times {3}^{10} }{ {3}^{36} } = \frac{ {3}^{33} }{ {3}^{36} } = \frac{1}{ {3}^{3} } = \frac{1}{27} [/tex]
Ответ:
1/27
Объяснение: на фото