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2009
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April
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- Common angles
- Angles of elevation and depression!
- Slopes of lines!
- Tangents and right triangles!
- Tangents and slopes!
- The trigonometric table!
- Definition of cosineThe cosine of an angle is defi...
- The standard notation for a right triangle!
- We can use properties of similar triangles to rela...
- The relation between sines and chords In this sect...
- Chords!
- Exercises!
- Radians and arc length
- Angle measurement!
- Similar triangles
- An explanation of the Pythagorean theorem!
- Let's agree again to the standard convention for l...
- What is trigonometry?
- Applications of Trigonometry!
- How to learn Trigonometry!
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April
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