(3x^-5/8y^-7)^-2

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Solution for (3x^-5/8y^-7)^-2 equation: 


D( x )

((3*x^-5)/8)*y^-7 = 0

x = 0

((3*x^-5)/8)*y^-7 = 0

((3*x^-5)/8)*y^-7 = 0

3/8*x^-5*y^-7 = 0 // : 3/8*y^-7

x^-5 = 0

x należy do O

x = 0

x = 0

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

(((3*x^-5)/8)*y^-7)^-2 = 0

64/9*x^10*y^14 = 0 // : 64/9*y^14

x^10 = 0

x = 0

x in { 0} 

x belongs to the empty set

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