2/u=-2

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Solution for 2/u=-2 equation: 


D( u )

u = 0

u = 0

u = 0

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

2/u = -2 // + 2

2/u+2 = 0

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

u^-1 = -1

-1 < 0

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

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

-1 = u^1

u = -1

u = -1

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