5/2=154/r

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Solution for 5/2=154/r equation: 


D( r )

r = 0

r = 0

r = 0

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

5/2 = 154/r // - 154/r

5/2-(154/r) = 0

5/2-154*r^-1 = 0

-154*r^-1 = -5/2 // : -154

r^-1 = 5/308

-1 < 0

1/(r^1) = 5/308 // * r^1

1 = 5/308*r^1 // : 5/308

308/5 = r^1

r = 308/5

r = 308/5

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