(2x/5)^-2

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


D( x )

(2*x)/5 = 0

(2*x)/5 = 0

(2*x)/5 = 0

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

x = 0

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

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

25/4*x^-2 = 0 // : 25/4

x^-2 = 0

x należy do O

x belongs to the empty set

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