4/9-10/x

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Solution for 4/9-10/x equation: 


D( x )

x = 0

x = 0

x = 0

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

4/9-(10/x) = 0

4/9-10*x^-1 = 0

-10*x^-1 = -4/9 // : -10

x^-1 = 2/45

-1 < 0

1/(x^1) = 2/45 // * x^1

1 = 2/45*x^1 // : 2/45

45/2 = x^1

x = 45/2

x = 45/2

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