0.4/1.6=2/n

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Solution for 0.4/1.6=2/n equation: 


D( n )

n = 0

n = 0

n = 0

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

0.4/1.6 = 2/n // - 2/n

0.4/1.6-(2/n) = 0

0.4/1.6-2*n^-1 = 0

-2*n^-1 = -0.25 // : -2

n^-1 = 0.125

-1 < 0

1/(n^1) = 0.125 // * n^1

1 = 0.125*n^1 // : 0.125

8 = n^1

n = 8

n = 8

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