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Mathematics 13 Online
OpenStudy (anonymous):

will fan and medal let f(x)={2x x<0 0 x>0 Which of the following is a equivalent definition of f(x) A.f(x)=x+│x│ B.f(x)=2│x│ C.f(x)= x-│x│ D.f(x)=│x│-x E.f(x)=2x

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