ln(2/9x^9y)

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Solution for ln(2/9x^9y) equation: 


D( x )

(2/9)*x^9*y <= 0

(2/9)*x^9*y <= 0

(2/9)*x^9*y <= 0

(2/9)*x^9*y = 0

2/9*x^9*y = 0 // : 2/9*y

x^9 = 0

x = 0

x <= 0

	(-oo:0)	(0:+oo)
x	-	+


x in (0:+oo)

ln((2/9)*x^9*y) = 0

ln((2/9)*x^9*y) = ln(e^0)

(2/9)*x^9*y = e^0

(2/9)*x^9*y-e^0 = 0

2/9*x^9*y = 1 // : 2/9*y

x^9 = 9/2*y^-1

x^9 = 9/2*y^-1 // ^ 1/9

x = (9/2)^(1/9)*y^(-1/9)

x = (9/2)^(1/9)*y^(-1/9)

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