3/r=8/4

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Solution for 3/r=8/4 equation: 


D( r )

r = 0

r = 0

r = 0

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

3/r = 8/4 // - 8/4

3/r-(8/4) = 0

3/r-2 = 0

3*r^-1 = 2 // : 3

r^-1 = 2/3

-1 < 0

1/(r^1) = 2/3 // * r^1

1 = 2/3*r^1 // : 2/3

3/2 = r^1

r = 3/2

r = 3/2

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