4/r=6/8

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Solution for 4/r=6/8 equation: 


D( r )

r = 0

r = 0

r = 0

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

4/r = 6/8 // - 6/8

4/r-(6/8) = 0

4/r-3/4 = 0

4*r^-1 = 3/4 // : 4

r^-1 = 3/16

-1 < 0

1/(r^1) = 3/16 // * r^1

1 = 3/16*r^1 // : 3/16

16/3 = r^1

r = 16/3

r = 16/3

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