42/56=6/f

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Solution for 42/56=6/f equation: 


D( f )

f = 0

f = 0

f = 0

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

42/56 = 6/f // - 6/f

42/56-(6/f) = 0

42/56-6*f^-1 = 0

-6*f^-1 = -3/4 // : -6

f^-1 = 1/8

-1 < 0

1/(f^1) = 1/8 // * f^1

1 = 1/8*f^1 // : 1/8

8 = f^1

f = 8

f = 8

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