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Asked by Reen

lim as x-> infinity sec^2(1/x)
15 years ago

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Answered by Reiny
As x ---> ∞ , 1/x ---> 0

So
lim sec^2(1/x) as x---> infinity
= lim sec^2(x) as x---> 0
= lim (1/cos^2(x) as x --->0
= 1/1
= 1
15 years ago
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