A f(1)=1
B f(0)=1
C f(-1)=3
D f(1)=3
Correct Answer: Option D
f(x) = x2 + 1/x + 1f(1) = 1 + 1 + 1 = 3f(0) = 0 + ∞ + 1 = ∞f(-1) = 1 - 1 + 1 = 1f(1) বসালে 3 পাওয়া যায়, সুতরাং সঠিক উত্তর (ঘ)
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