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Trigonometric Functions
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Demonstrations 1  20 of 193
3D Loops
New this month
The ThreeGap Theorem
Updated this month
Gielis's Superformula for Complex Shapes
Trigonometric Reference Angles
Binomial Coefficients in the MultipleAngle Tangent Formula
Area of an Inscribed Triangle in Terms of the Product of Its Sides
Visual Derivation of a Trigonometric Identity
Trigonometric Functions of Commutative Matrices
Area Among Four Curves In A Square
The Sum of Tangent and Cotangent Is at Least 2
Refraction in a Triangular Prism
Refraction in a Biconvex Spherical Lens
Lissajous Figures from Projections of Points on Circles
Factoring the Even Trigonometric Polynomials of A269254
Wrapping the Number Line around the Unit Circle
Area of a Triangle Using Sine
Solid and Dihedral Angles of a Tetrahedron
Directed Angles and Their Types
Measure of the Angle between Two Straight Lines
Multiple Angle Formulas for Sine and Cosine
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