Решите пожалуйста выражения. Created by Mankeysy. algebra-ru

Решите пожалуйста выражения...

April 2021 1 51 Report

Решите пожалуйста выражения

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Segrif 1. (x * x^(1/3))^(1/4) / x^(1/3) = (x^(4/3))^(1/4) / x^(1/3) = x^(1/3) / x^(1/3) = 1, x <> 0
2. ( (y^4)^(1/5) - 9 )/( (y^2)^(1/5) - 3) - (y^2)^(1/5) = ( (y^(2/5))^2 - 9 )/( y^(2/5) - 3) - y^(2/5) = (y^(2/5) + 3)(y^(2/5) - 3)/(y^(2/5) - 3) - y^(2/5) = y^(2/5) + 3 - y^(2/5) = 3, y <> 3^(5/2)
3. (a * (a^(-1))^(1/3))^(1/6) * (a^2)^(1/3) = (a * a^(-1/3))^(1/6) * a^(2/3) = (a^(2/3))^(1/6) * a^(2/3) = a^(2/18 + 2/3) = a^(7/9), a <> 0
4. (8 - c)/(2-c^(1/3)) + 2c^(1/3) = (2 - c^(1/3))(4 + 2c^(1/3) + c^(2/3))/(2-c^(1/3)) + 2c^(1/3) = 4 + 2c^(1/3) + c^(2/3) + 2c^(1/3) = c^(2/3) + 4c^(1/3) + 2^2 = (c^(1/3) + 2)^2, c <> 8

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