F(x)=x2+ 1/x-1 - 1হলে নিচের কোনটি সঠিক?
Solution
Correct Answer: Option D
if f(-1)=-1 then, F(x)=x2+ 1/x-1 - 1 = (1)2+ 1/(-1)-1 - 1 =1-1-1 =-1
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