F(x)=x+ 1/(x-1) -1 হলে,নিচের কোনটি সঠিক ?    

A F(o) = ∞

B f (1) = -1

C f (1) =0

D f (-1) = -1/2

Solution

Correct Answer: Option D

দেওয়া আছে, 
F(x)=x+ 1/(x-1) -1

এখন,
F(-1)=(-1)2 + 1/(-1-1) -1= -1/2

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