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Sum and Difference Formulas
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Classroom Contents
Precalculus
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- 1 Domain and Range
- 2 What is a logarithm?
- 3 Rational Roots Theorem
- 4 Factor like a pro
- 5 Compound Interest Formula
- 6 What is a radian?
- 7 Trigonometry
- 8 Graphs of sin and cos
- 9 tan cot arctan and all that
- 10 Inverse Trig Functions
- 11 Trigonometric Identities
- 12 Sum and Difference Formulas
- 13 Double angle formulas
- 14 Trigonometric equations
- 15 Law of Sines
- 16 Al-Kashi's Mysterious Formula
- 17 clever cosine trick #shorts
