-2=2/f

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Solution for -2=2/f equation: 


D( f )

f = 0

f = 0

f = 0

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

-2 = 2/f // - 2/f

-(2/f)-2 = 0

-2*f^-1-2 = 0

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

f^-1 = -1

-1 < 0

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

1 = -1*f^1 // : -1

-1 = f^1

f = -1

f = -1

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