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Recap: Triangle basics (sides and angles) and properties
FTC: Differentiating an Integral Function
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Intuition
Cautions for l'Hospital's Rule
Relating trig and complex numbers
Angle addition and subtraction formulas
Circle properties and theorems
Geometry of a shape or object
Expressions with Real Numbers
Extension: $a^3+b^3+c^3-3abc$
Right triangles
Extension: Complex number geometry intro
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