{"product_id":"2940016749341","title":"Essential Trigonometry: A Self-Teaching Guide","description":"This no-nonsense guide provides students and self-learners with a clear and readable study of trigonometry's most important ideas. Tim Hill's distraction-free approach combines decades of tutoring experience with the methods of his old-school Russian math teachers. The result: learn in a few days what conventional schools stretch into months.\u003cbr\u003e\u003cbr\u003e- Teaches general principles that can be applied to a wide variety of problems.\u003cbr\u003e- Avoids the mindless and excessive routine computations that characterize conventional textbooks.\u003cbr\u003e- Treats trigonometry as a logically coherent discipline, not as a disjointed collection of techniques.\u003cbr\u003e- Restores proofs to their proper place to remove doubt, convey insight, and encourage precise logical thinking.\u003cbr\u003e- Omits digressions, excessive formalities, and repetitive exercises.\u003cbr\u003e- Covers all the trigonometry needed to take a calculus course.\u003cbr\u003e- Includes detailed solutions to all problems.\u003cbr\u003e\u003cbr\u003eContents\u003cbr\u003e1. To the Student\u003cbr\u003e2. A Few Prereqs\u003cbr\u003e3. Radian Measure\u003cbr\u003e4. The Trig Functions\u003cbr\u003e5. Trig Values for Special Angles\u003cbr\u003e6. Graphs of Trig Functions\u003cbr\u003e7. The Major Formulas\u003cbr\u003e8. Inverse Trig Functions\u003cbr\u003e9. The Law of Cosines (and Sines)\u003cbr\u003e10. Problems \u0026amp; Solutions\u003cbr\u003e11. Trig Cheat Sheet\u003cbr\u003e","brand":"Questing Vole Press","offers":[{"title":"Default Title","offer_id":47163120615664,"sku":"2940016749341","price":5.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/7593\/9824\/files\/2940016749341_p0.jpg?v=1763660097","url":"https:\/\/shop-qa.barnesandnoble.com\/products\/2940016749341","provider":"Barnes \u0026 Noble (DEV)","version":"1.0","type":"link"}