(2x^-3)/(5x^-7)

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Solution for (2x^-3)/(5x^-7) equation: 


D( x )

x = 0

5*x^-7 = 0

x = 0

x = 0

5*x^-7 = 0

5*x^-7 = 0

5*x^-7 = 0 // : 5

x^-7 = 0

x należy do O

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

(2*x^-3)/(5*x^-7) = 0

2/5*x^4 = 0 // : 2/5

x^4 = 0

x = 0

x in { 0} 

x belongs to the empty set

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