拉普拉斯小妖 2020-02-12 14:49:11

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From angles to functions to identities - solve trig equations with ease
Got a grasp on the terms and concepts you need to know, but get lost
halfway through a problem or worse yet, not know where to begin? No fear
- this hands-on-guide focuses on helping you solve the many types of
trigonometry equations you encounter in a focused, step-by-step manner.
With just enough refresher explanations before each set of problems,
you'll sharpen your skills and improve your performance. You'll see how
to work with angles, circles, triangles, graphs, functions, the laws of
sines and cosines, and more!
100s of Problems!
* Step-by-step answer sets clearly identify where you went wrong (or right) with a problem
* Get the inside scoop on graphing trig functions
* Know where to begin and how to solve the most common equations
* Use trig in practical applications with confidence