b9/b-4

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Solution for b9/b-4 equation: 


D( b )

b = 0

b = 0

b = 0

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

(b^9)/b-4 = 0

1*b^8 = 4 // : 1

b^8 = 4

b^8 = 4 // ^ 1/8

abs(b) = 4^(1/8)

b = 4^(1/8) or b = -4^(1/8)

b in { 4^(1/8), -4^(1/8) }

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