2/n=n/15

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Solution for 2/n=n/15 equation: 


D( n )

n = 0

n = 0

n = 0

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

2/n = n/15 // - n/15

2/n-(n/15) = 0

2*n^-1-1/15*n^1 = 0

(2*n^0-1/15*n^2)/(n^1) = 0 // * n^2

n^1*(2*n^0-1/15*n^2) = 0

n^1

(-1/15)*n^2+2 = 0

(-1/15)*n^2+2 = 0

DELTA = 0^2-(2*4*(-1/15))

DELTA = 8/15

DELTA > 0

n = ((8/15)^(1/2)+0)/(2*(-1/15)) or n = (0-(8/15)^(1/2))/(2*(-1/15))

n = -15/2*(8/15)^(1/2) or n = 15/2*(8/15)^(1/2)

n in { -15/2*(8/15)^(1/2), 15/2*(8/15)^(1/2)} 

n in { -15/2*(8/15)^(1/2), 15/2*(8/15)^(1/2) }

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