8/x^-4y^7

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Solution for 8/x^-4y^7 equation: 


D( x )

x = 0

x^-4 = 0

x = 0

x = 0

x^-4 = 0

x^-4 = 0

1*x^-4 = 0 // : 1

x^-4 = 0

x należy do O

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

(8/(x^-4))*y^7 = 0

8*x^4*y^7 = 0 // : 8*y^7

x^4 = 0

x = 0

x in { 0} 

x belongs to the empty set

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