Trigonometry Archives - The Nature of Mathematics

Homework Hints 7-5

October 22, 2015July 13, 2015 by elaine

[tippy title=”Problems 1-4″]Problems 1-4
These problems are designed to make sure you are familiar with the Pythagorean theorem as well as the definitions of sine, cosine, and tangent.[/tippy]

[tippy title=”Problem 5″]Problem 5
Use the Pythagorean theorem and Example 1.[/tippy]

[tippy … See the whole entry

Section 7.5: Right-Triangle Trigonometry

September 25, 2015July 10, 2015 by elaine

7.5 Outline

Pythagorean theorem
Trigonometric ratios
1. sine
2. cosine
3. tangent
Inverse trigonometric ratios
1. calculator calculating
2. inverse trigonometric ratios
  1. inverse tangent
  2. inverse cosine
  3. inverse sine
Applications
1. angle of elevation
2. angle of depression

7.5 Essential Ideas

7.5.1 … See the whole entry