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" Lot "f" be a conlinuoua function satiz...

" Lot "f" be a conlinuoua function satizying "f(x)f(y)=f(x)|f(y)" । "f(wy)quad 2" for "" wll "z,y,C,D" and "f(2)=5" then "lim_(x rarr4)f(x)" is "

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