ln(x^7/2)

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


D( x )

(x^7)/2 <= 0

(x^7)/2 <= 0

(x^7)/2 <= 0

1/2*x^7 <= 0

1/2*x^7 <= 0 // : 1/2

x^7 <= 0/1/2

x^7 <= 0

x^7 <= 0 // ^ 1/7

x <= 0

x in (-oo:0>

x in (0:+oo)

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

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

(x^7)/2 = e^0

(x^7)/2-e^0 = 0

1/2*x^7 = 1 // : 1/2

x^7 = 2

x^7 = 2 // ^ 1/7

x = 2^(1/7)

x = 2^(1/7)

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