x^(-1/7)=1/2

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Solution for x^(-1/7)=1/2 equation: 


D( x )

x = 0

x = 0

x = 0

x in (-oo:0) U (0:+oo)

x^(-1/7) = 1/2 // - 1/2

x^(-1/7)-(1/2) = 0

x^(-1/7)-1/2 = 0

1*x^(-1/7) = 1/2 // : 1

x^(-1/7) = 1/2

-1/7 < 0

1/(x^(1/7)) = 1/2 // * x^(1/7)

1 = 1/2*x^(1/7) // : 1/2

2 = x^(1/7)

x^(1/7) = 2 // ^ 7

x = 128

x = 128

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