7^-3/x^-2

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Solution for 7^-3/x^-2 equation: 


D( x )

x = 0

x^-2 = 0

x = 0

x = 0

x^-2 = 0

x^-2 = 0

1*x^-2 = 0 // : 1

x^-2 = 0

x należy do O

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

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

1/343*x^2 = 0 // : 1/343

x^2 = 0

x = 0

x in { 0} 

x belongs to the empty set

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