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This page should serve as a useful reference point for all trigonometric values, including the values of standard angles and their measures in both degrees and radians. You can refer to this page to create flashcards, graphs, and other useful study tools that may help you memorize these key concepts. Once you have these values and ratios memorized, it should be easy to solve a wide range of geometric ratios with a few swipes of your pencil!
The most important trigonometric ratios are cosine, sine, and tangent. Let's review these three key concepts:
Let's quickly review a few important definitions:
Standard angles are the most common angles. We see these angles all the time in tests and quizzes, so it makes sense to memorize their values if possible. When we know these values off the top of our heads, we can solve many triangles (and a wide range of other shapes) with just a few easy steps.
The unit circle is essential in trigonometry for understanding angles, connecting radians and degrees, and simplifying common values for trigonometric functions.
Values of Trigonometric Ratios for Common Angles
College Algebra Diagnostic Tests
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