2b-2/2b^-8

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Solution for 2b-2/2b^-8 equation: 


D( b )

b = 0

b = 0

b = 0

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

2*b-((2/2)*b^-8) = 0

2*b-b^-8 = 0

2*b-b^-8 = 0

b*(2-b^-9) = 0

-1*b^-9 = -2 // : -1

b^-9 = 2

-9 < 0

1/(b^9) = 2 // * b^9

1 = 2*b^9 // : 2

1/2 = b^9

b^9 = 1/2 // ^ 1/9

b = (1/2)^(1/9)

b = 0

b = 0

b in { 0} 

b = (1/2)^(1/9)

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