We have the following limits: lim x → π 4 1 − tan 2 ...
We have the following limits:
Using L'Hôpital I obtained that the second limit is . For the first limit I was able to rewrite it to , but I don't really know what to do with that.
Answer & Explanation
For the first limit, some elementary trigonometry (a duplication formula) will do:
For the second limit, use asymptotic analysis: