kakhanis123 kakhanis123
  • 29-05-2021
  • Mathematics
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[tex]{7}^{b - 2} - {7}^{b} \div {7}^{b + 3} [/tex]
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Аноним Аноним
  • 29-05-2021

Answer:

[tex]{7}^{b - 2} - {7}^{b} \div {7}^{b + 3} \\ = (\frac{ {7}^{b} }{ {7}^{2} } - {7}^{b} ) \div ( {7}^{b} \times {7}^{3} ) \\ = \frac{ (1 - {7}^{2} )}{ {7}^{5} } \\ [/tex]

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