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 ...

Sure! Here's the new description with all the links and additional text removed: Learn how to simplify rational identities involving addition and subtraction. To simplify rational identities involving ...

You might have already passed that silly course with a title something like "Introductory Algebra and Trigonometry." It covered a bunch of stuff, but the important part was that the class was a ...