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The ratio tan(2x) over x has what limit at x = 0?
AEqual to 2
BEqual to 0
CEqual to 1
DEqual to 1/2
Answer & Solution
Correct answer: A. Equal to 2
tan 2x / x = 2 (tan 2x / 2x), and tan u / u tends to 1, so the limit is 2.
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