Объяснение:
5⁻³ · 5⁻⁹ ÷ 5⁻¹¹ = 5⁻³⁺⁽⁻⁹⁾⁻⁽⁻¹¹⁾ = 5⁻¹²⁺¹¹ = 5⁻¹ = 1/5 ------> 3)
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Объяснение:
5⁻³ · 5⁻⁹ ÷ 5⁻¹¹ = 5⁻³⁺⁽⁻⁹⁾⁻⁽⁻¹¹⁾ = 5⁻¹²⁺¹¹ = 5⁻¹ = 1/5 ------> 3)