a^-2/-3^2

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Solution for a^-2/-3^2 equation: 


D( a )

a = 0

a = 0

a = 0

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

(a^-2)/((-3)^2) = 0

1/9*a^-2 = 0 // : 1/9

a^-2 = 0

a należy do O

a belongs to the empty set

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