Question
limx→−∞{x4sin(1x)+x21+|x|3} is equal to
Answer: Option C
:
C
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:
C
limx→−∞[x4sin(1x)+x21+|x|3]
limx→−∞x31+|x|3[xsin(1x)+1x]
As x→−∞
x31+|x|3=−1
x sin(1x)+1x=1
⇒limx→−∞x31+|x|3(x sin1x+1x)=−1
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