(3a)^3*(9a4)^(1/2)/27^(-3/2)a^-3

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Solution for (3a)^3*(9a4)^(1/2)/27^(-3/2)a^-3 equation: 


D( a )

a = 0

9*a^4 < 0

27^(-3/2) = 0

a = 0

a = 0

9*a^4 < 0

9*a^4 < 0

9*a^4 < 0

9*a^4 < 0 // : 9

a^4 < 0/9

a^4 < 0

a belongs to the empty set

27^(-3/2) = 0

27^(-3/2) = 0

27^(-3/2) = 0

a belongs to the empty set

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

a^-3*(((9*a^4)^(1/2)*(3*a)^3)/(27^(-3/2))) = 0

(81/(27^(-3/2)))*a^2 = 0 // : 81/(27^(-3/2))

a^2 = 0

a = 0

a in { 0} 

a belongs to the empty set

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