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B
-1
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C
0
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D
1/2
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Solution
The correct option is A
1
=limx→∞√x2+1−3√x2+14√x4+1−5√x4−1=limx→∞x√1+1x2−x2/33√1+1x2x.4√1+1x4−x4/55√1−1x4Dividing the numerator and denominator by x=limx→∞√1+1x2−1x1/33√1+1x24√1+1x4−1x1/55√1−1x4=1−01−0=1