-8=(2/u)

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Solution for -8=(2/u) equation: 


D( u )

u = 0

u = 0

u = 0

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

-8 = 2/u // - 2/u

-(2/u)-8 = 0

-2*u^-1-8 = 0

-2*u^-1 = 8 // : -2

u^-1 = -4

-1 < 0

1/(u^1) = -4 // * u^1

1 = -4*u^1 // : -4

-1/4 = u^1

u = -1/4

u = -1/4

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