Question

Решите пример с дробями

Answer 1

3⁻⁹*9⁻⁵/27⁻⁷=3⁻⁹*(3²)⁻⁵/(3³)⁻⁷=3⁻⁹*3⁻¹⁰/3⁻²¹=3⁻¹⁹/3⁻²¹=1/3⁻²=3²=9.