UNIT 3: Geometry and Trigonometry

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Formulae (SL & HL)

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55 Terms

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Distance Formula (2D)

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Coordinates of Midpoints (2D)

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Parallel and Perpendicular Lines

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Surface Area and Volumes of Common Solids

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Distance Formula (3D)

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Coordinates of Midpoints (3D)

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Radians

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Common Angles in Radians

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Sine and Cosine in the Unit Circle

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Unit Circle

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Arc Length

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Area of a Sector

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Sine Rule

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Cosine Rule

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Area of any Triangle

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tan (θ)

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cosec (θ)

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sec (θ)

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cot (θ)

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Pythagorean Identity (Trigonometry)

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sin(2θ) - Double Angles

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cos(2θ) - Double Angles

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tan(2θ) - Double Angles

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sec2(θ)

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cosec2(θ)

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sin (A±B) - Compound Angles

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cos (A±B) - Compound Angles

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tan (A±B) - Compound Angles

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Transformations (Trigonometry)

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Graphs of sin(x), cos(x) and tan(x)

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Periodicity of Angles in Radians

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Directed Line Segment

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Vectors

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Properties of Vectors

  • Collinearity - Two points are colinear if they lie on the same line.

  • Coplanarity - Two points or lines are coplanar if they lie in the same plane.

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Parallelogram Rule (Vectors)

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Triangle Rule (Vectors)

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Zero Vector

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Multiplication by a Scalar (Vectors)

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Linear Combination of Vectors

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Subtraction of Vectors

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Coplanarity of Vectors (in 3D Space)

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Vectors in Geometry

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Base Vectors

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Position Vectors

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Vector Addition

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Multiplication by a Scalar (Vector Algebra)

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Linear Combination (Vector Algebra)

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Finding Position Vectors from Coordinate Points

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3D Algebra (Vectors)

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Magnitude of a Vector

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Unit Vectors

Unit vectors are vectors with a magnitude of 1 in any direction, any vector can now be represented as its parallel unit vector.

<p><span>Unit vectors are vectors with a magnitude of 1 in any direction, any vector can now be represented as its parallel unit vector.</span></p>
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Scalar/Dot Product

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Geometric Definition (Scalar/Dot Product)

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Zero Dot Product (Vectors)

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Properties of Scalar/Dot Product (Vectors)

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