Ответы на вопрос:
5 ^ (3√7 - 1) * 5 ^ (1 - √7) : 5 ^ (2√7 - 1) =
= 5 ^ ((3√7 - 1) + (1 - √7) - (2√7 - 1)) =
= 5 ^ (3√7 - 1 + 1 - √7 - 2√7 + 1) =
= 5¹ = 5,
(5³°⁵ * 3⁵°⁵) / (15⁴°⁵) =
= (5³°⁵ * 3⁵°⁵) / ((3*5)⁴°⁵) =
= (5³°⁵ * 3⁵°⁵) / (3⁴°⁵ * 5⁴°⁵) =
= 5³°⁵⁻⁴°⁵ * 3⁵°⁵⁻⁴°⁵ =
= 5⁻¹ * 3¹ = 1/5¹ * 3¹ =
= 1/5 * 3 = 3/5
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