Saturday, April 14, 2018

limits - Find: limxtofracpi4fracsin4x1sqrt2cosx (no L'Hopital)


Find: limxπ4sin4x12cosx (no L'Hopital)



By L'Hopital it is easy to show that this limit is 4. But I'm not finding the right approach to prove without using it.



Hints and answers appreciated. Sorry if this is a duplicate.

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