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| Math Central | Quandaries & Queries |
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Question from Kathy, a student: Hi! I was just wondering how to do this question: lim 1-cos2x/xsinx as x approaches 0 Thanks, Kathy |
Kathy,
You want to evaluate
lim 1-cos2x/xsinx as x approaches 0
Can you see how to use the fact that sin2(x) + cos2(x) = 1?
Penny
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