w/9-9/w=0

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Solution for w/9-9/w=0 equation: 


D( w )

w = 0

w = 0

w = 0

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

w/9-(9/w) = 0

w/9-9*w^-1 = 0

1/9*w^1-9*w^-1 = 0

(1/9*w^2-9*w^0)/(w^1) = 0 // * w^2

w^1*(1/9*w^2-9*w^0) = 0

w^1

(1/9)*w^2-9 = 0

(1/9)*w^2-9 = 0

DELTA = 0^2-(-9*4*(1/9))

DELTA = 4

DELTA > 0

w = (4^(1/2)+0)/(2*(1/9)) or w = (0-4^(1/2))/(2*(1/9))

w = 9 or w = -9

w in { -9, 9} 

w in { -9, 9 }

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