I'm wondering why this integral won't be evaluated. http://puu.sh/h2E2t/172302af91.png I have entered everything correctly, it seems. However, it keeps giving me the same integral, unevaluated, as the result. Thanks!
You misspelled Log and Cos. Capital letters required.
In[1]:= Integrate[Log[2 + Cos[x]], {x, 0, Pi}] Out[1]= \[Pi] Log[1/2 (2 + Sqrt[3])]
Log and Cos should both start with capital letters.
