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I've been trying to solve a limit, and I found some difficulties doing that. Any help would be appreciated!

lim cos(2x) / 2cosx - √2

x→ (π/4)

so, what I tried to do is expand that cos(2x) but I still get 0/0

Any hints ?

Thank cyou

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# Trying to solve a limit

**Physics Forums | Science Articles, Homework Help, Discussion**