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(8*ln(4*x))'The calculation above is a derivative of the function f (x)
(8)'*ln(4*x)+8*(ln(4*x))'
0*ln(4*x)+8*(ln(4*x))'
0*ln(4*x)+8*(1/(4*x))*(4*x)'
0*ln(4*x)+8*(1/(4*x))*((4)'*x+4*(x)')
0*ln(4*x)+8*(1/(4*x))*(0*x+4*(x)')
0*ln(4*x)+8*(1/(4*x))*(0*x+4*1)
0*ln(4*x)+8*x^-1
8*x^-1
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