ln(7x^2)/11

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Solution for ln(7x^2)/11 equation: 


D( x )

7*x^2 <= 0

7*x^2 <= 0

7*x^2 <= 0

7*x^2 <= 0

7*x^2 <= 0 // : 7

x^2 <= 0/7

x^2 <= 0

x in <0:0>

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

ln(7*x^2)/11 = 0

1/11*ln(7*x^2) = 0 // : 1/11

ln(7*x^2) = 0

ln(7*x^2) = ln(e^0)

7*x^2 = e^0

7*x^2-e^0 = 0

7*x^2 = 1 // : 7

x^2 = 1/7

x^2 = 1/7 // ^ 1/2

abs(x) = (1/7)^(1/2)

x = (1/7)^(1/2) or x = -(1/7)^(1/2)

x in { (1/7)^(1/2), -(1/7)^(1/2) }

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