Great content, makes it much easier to get through concepts. But as most math learning resources, it lacks examples of their practical application. "The law of

Great content, makes it much easier to get through concepts. But as most math learning resources, it lacks examples of their practical application. "The law of cosines is a very useful formula to know" - fine but why? Most learners can't imagine where they can apply what their teachers say, which brings it down to learn useless-for-them terms, needed just to pass exams. Some basic examples like these would make it much more reasonable to learn: http://study.com/academy/lesson/solving-real-world-problems-using-the-law-of-cosines.html http://study.com/academy/lesson/solving-real-world-problems-...