Bài giảng Vật lý thiên văn: Chương 3 - TS. Nguyễn Nhật Kim Ngân

Chapter 3 focuses on the geometry of right triangles and triangle formulas, specifically the sine, cosine, and tangent functions. These formulas are applied to various right triangle problems, such as finding h, t, A, and θ. The document also presents a computer program for solving right triangle problems using these formulas.

This document is intended for students, researchers, and professionals in mathematics, physics, engineering, and computer science who work with or study right triangles and trigonometric functions.

The third chapter of this text delves into the geometry of right triangles and the associated formulas for trigonometric functions, including sine (sin), cosine (cos), and tangent (tangent). These formulas are applied to various problems related to right triangles, such as finding h, t, A, and θ. The document also introduces a computer program for solving problems involving right triangles using these trigonometric functions. In detail, the chapter starts by defining a right triangle as one with each angle measuring 90 degrees, and presents the formulas for sin, cos, and tangent (sincos) in this context. The chapter further expands upon these formulas, providing step-by-step methods to solve various right triangle problems, such as finding missing sides or angles given certain known values. Additionally, the chapter provides worked examples to illustrate the application of the trigonometric formulas and computer program.