E=45/x

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Solution for E=45/x equation: 


D( x )

x = 0

x = 0

x = 0

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

e = 45/x // - 45/x

e-(45/x) = 0

e-45*x^-1 = 0

-45*x^-1 = -e // : -45

x^-1 = e/45

-1 < 0

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

1 = (e/45)*x^1 // : e/45

45*e^-1 = x^1

x = 45*e^-1

x = 45*e^-1

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