3x^(-1/2)=1

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Solution for 3x^(-1/2)=1 equation: 


D( x )

x < 0

x = 0

x < 0

x = 0

x = 0

x in (0:+oo)

3*x^(-1/2) = 1 // - 1

3*x^(-1/2)-1 = 0

3*x^(-1/2) = 1 // : 3

x^(-1/2) = 1/3

-1/2 < 0

1/(x^(1/2)) = 1/3 // * x^(1/2)

1 = 1/3*x^(1/2) // : 1/3

3 = x^(1/2)

x^(1/2) = 3 // ^ 2

x = 9

x = 9

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