A) 4
B) 3
C) 2
D) 1
Correct Answer: D
Solution :
By definition of continuity, we know that \[\underset{x\to 3+}{\mathop{\lim }}\,f(x)=f(3)=\underset{x\to 3-}{\mathop{\lim }}\,f(x)\] \[\Rightarrow \,\underset{x\to 3-}{\mathop{\lim }}\,f(x)=4\] or \[\underset{h\to 0}{\mathop{\lim }}\,3-h+\lambda =4\] \[f(3)=3.7\]
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