Welcome to this class on Trigonometry. Trigonometry is really an indispensable part of mathematics and thus, our lives. We encounter the use of triangles and trigonometry in everyday life quite often. So, having a sound knowledge of the basic concepts of trigonometry is really important and will be very helpful in all walks of our lives be it academics, routine jobs and even at work. After completing this course, you will find yourself very comfortable with Trigonometry. You will develop a good understanding on Trigonometry concepts and would be able to apply them practically in solving problems.