(81x^2)^(1/2)

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Solution for (81x^2)^(1/2) equation: 


D( x )

81*x^2 < 0

81*x^2 < 0

81*x^2 < 0

81*x^2 < 0

81*x^2 < 0 // : 81

x^2 < 0/81

x^2 < 0

x belongs to the empty set

x in (-oo:+oo)

(81*x^2)^(1/2) = 0

9*x = 0 // : 9

x = 0

x = 0

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