2/8=5/v

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Solution for 2/8=5/v equation: 


D( v )

v = 0

v = 0

v = 0

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

2/8 = 5/v // - 5/v

2/8-(5/v) = 0

2/8-5*v^-1 = 0

-5*v^-1 = -1/4 // : -5

v^-1 = 1/20

-1 < 0

1/(v^1) = 1/20 // * v^1

1 = 1/20*v^1 // : 1/20

20 = v^1

v = 20

v = 20

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