E A) If f(X):[2019,2020] →R is continuous and 2020 f = ] f , 2019 XE[2019, 2020]. Show that : f(X)= 0, VXE[2019, 2020]. B) If f (x ) e Rus1 and ceR. We define g(x)on [a+c,b +c] by g(y):=f (y -c).show that ge sebvel and that [f = [ g %3D

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