CK-12 Trigonometry


CK-12 Foundation - 2010
    Topics include: Trigonometric Identities & Equations, Circular Functions, and Polar Equations & Complex Numbers.

This Book Needs No Title: A Budget of Living Paradoxes


Raymond M. Smullyan - 1980
    From Simon & Schuster, This Book Needs No Title is Raymond Smullyan's budget of living paradoxes—the author of What is the Name of This Book?Including eighty paradoxes, logical labyrinths, and intriguing enigmas progress from light fables and fancies to challenging Zen exercises and a novella and probe the timeless questions of philosophy and life.