v/7-7/v=0

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Solution for v/7-7/v=0 equation: 


D( v )

v = 0

v = 0

v = 0

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

v/7-(7/v) = 0

v/7-7*v^-1 = 0

1/7*v^1-7*v^-1 = 0

(1/7*v^2-7*v^0)/(v^1) = 0 // * v^2

v^1*(1/7*v^2-7*v^0) = 0

v^1

(1/7)*v^2-7 = 0

(1/7)*v^2-7 = 0

DELTA = 0^2-(-7*4*(1/7))

DELTA = 4

DELTA > 0

v = (4^(1/2)+0)/(2*(1/7)) or v = (0-4^(1/2))/(2*(1/7))

v = 7 or v = -7

v in { -7, 7} 

v in { -7, 7 }

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