Translation of cosine in German

I was wondering if you can tell me if few words how to study here because I don't know that's why I'm not on line most of the time,thanks. Can you help me explaining me how to do the lessons, I still don't understand it
We drove back to the city and this time our bus driver went even crazier. We prayed for the ride to be over. We arrived safely two hours later and rushed back to our house not even complaining.
The view from the top was amazing. One could see the hugh lakes and the surrounding mountains, which were still covered in snow. The landscape was really fantastic and blue skies added to its beauty.