Ответ:
1. a¹²:a¹ = a¹²⁻¹ = a¹¹
2. c⁸:c = c⁸⁻¹ = c⁷
3. (a+b)¹¹:(a+b)⁴ = (a+b)¹¹⁻⁴ = (a+b)⁷
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Ответ:
1. a¹²:a¹ = a¹²⁻¹ = a¹¹
2. c⁸:c = c⁸⁻¹ = c⁷
3. (a+b)¹¹:(a+b)⁴ = (a+b)¹¹⁻⁴ = (a+b)⁷