8=-4/v

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Solution for 8=-4/v equation: 


D( v )

v = 0

v = 0

v = 0

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

8 = -4/v // + -4/v

8-(-4/v) = 0

4*v^-1+8 = 0

4*v^-1 = -8 // : 4

v^-1 = -2

-1 < 0

1/(v^1) = -2 // * v^1

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

-1/2 = v^1

v = -1/2

v = -1/2

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