यदि f((x+y)/2) =(f(x)+f(y))/2 AA x, y ...

यदि `f((x+y)/2) =(f(x)+f(y))/2 AA x, y`
यदि `f'(0)=-1` तथा `f(0)=1` तब `f(3)` का मान ज्ञात कीजिए।

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