IN this school-book of three hundred and twenty-six pages the authors have arranged a course on trigonometry which should be most useful to those studying this subject for the first time. The book may ...

An animated guide to using trigonometry. Trigonometric terms are explained and examples are used to show how to find unknown angles and sides for right-angled triangles. Use as an introduction or ...

OK, so hold on, Will. Before we totally wrap up this week's puzzle, we need to admit to a bit of a mistake that we made in one of our answers last week. I think you know what I'm talking about. WILL ...