Education for all. Geometry. Trigonometry. Unit circle. Recommended for pupils and students. Visual understanding and calculating sine, cosine, tangent, cotangent, secant and cosecant function, degrees and radians. Description of functions. Table of values. Trigonometric formulas and identities: symmetry, shifts, periodicity, basic identities, sum and difference of the angles, double angle, triple angle half-angle, sum and difference functions multiplication of functions, lowering the degree formula, derivatives and integrals. Move point to define angle and functions. Ta
Trigonometry. Unit circle. is a free educational mobile app By .It helps students in grades HS practice the following standards HSF.TF.A.2.
1. HSF.TF.A.2 : Explain how the unit circle in the coordinate plane enables the extension of trigonometric functions to all real numbers, interpreted as radian measures of angles traversed counterclockwise around the unit circle.