(7x^-6/8y^-8)^-3

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Solution for (7x^-6/8y^-8)^-3 equation: 


D( x )

x = 0

((7*x^-6)/8)*y^-8 = 0

x = 0

x = 0

((7*x^-6)/8)*y^-8 = 0

((7*x^-6)/8)*y^-8 = 0

7/8*x^-6*y^-8 = 0 // : 7/8*y^-8

x^-6 = 0

x naleu017Cy do O

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

(((7*x^-6)/8)*y^-8)^-3 = 0

512/343*x^18*y^24 = 0 // : 512/343*y^24

x^18 = 0

x = 0

x in { 0} 

x belongs to the empty set

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