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