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(x-(0.1*(x-(0.2*x)))-(0.2*x))'The calculation above is a derivative of the function f (x)
(x-(0.1*(x-(0.2*x))))'+(-(0.2*x))'
(-(0.1*(x-(0.2*x))))'+(x)'+(-(0.2*x))'
(0.1)'*(x-(0.2*x))+0.1*(x-(0.2*x))'+(x)'+(-(0.2*x))'
0*(x-(0.2*x))+0.1*(x-(0.2*x))'+(x)'+(-(0.2*x))'
0*(x-(0.2*x))+0.1*((x)'+(-(0.2*x))')+(x)'+(-(0.2*x))'
0*(x-(0.2*x))+0.1*((-(0.2*x))'+1)+(x)'+(-(0.2*x))'
0*(x-(0.2*x))+0.1*(0.2*(x)'+(0.2)'*x+1)+(x)'+(-(0.2*x))'
0*(x-(0.2*x))+0.1*(0.2*(x)'+0*x+1)+(x)'+(-(0.2*x))'
0*(x-(0.2*x))+0.1*(0*x+0.2*1+1)+(x)'+(-(0.2*x))'
0*(x-(0.2*x))+(x)'+(-(0.2*x))'+0.1*0.8
(-(0.2*x))'-0.08+1
0.2*(x)'+(0.2)'*x+0.92
0.2*(x)'+0*x+0.92
0*x+0.2*1+0.92
0.72
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