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advanced trig formulas
summary
the content provides an in-depth exploration of advanced trigonometry formulas crucial for tackling the sat exam, emphasizing the importance of understanding and applying these formulas rather than memorizing them.
- introduction to sign rules for trigonometric functions, highlighting the behavior of sine and cosine with negative angles.
- explanation of angle addition and subtraction rules, including the derivation of sine and cosine for specific acute angles and their combinations.
- presentation of practice problems to apply the discussed formulas, reinforcing the concept that familiarity through practice enhances problem-solving skills.
- discussion on formulas for non-right triangles, specifically the law of cosines and the law of sines, to solve for unknown angles and sides in various triangle configurations.
- stress on the importance of practice with these formulas to ensure comfort and familiarity when encountering them on the test.
chapters
00:00
understanding sign rules in trigonometry
02:00
angle addition and subtraction rules
03:08
applying formulas through practice problems
04:52
solving non-right triangles
