100/y=y

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Solution for 100/y=y equation: 


D( y )

y = 0

y = 0

y = 0

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

100/y = y // - y

100/y-y = 0

100*y^-1-1*y^1 = 0

(100*y^0-1*y^2)/(y^1) = 0 // * y^2

y^1*(100*y^0-1*y^2) = 0

y^1

100-y^2 = 0

100-y^2 = 0

DELTA = 0^2-(-1*4*100)

DELTA = 400

DELTA > 0

y = (400^(1/2)+0)/(-1*2) or y = (0-400^(1/2))/(-1*2)

y = -10 or y = 10

y in { -10, 10} 

y in { -10, 10 }

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