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FOREWORD TO THE STUDENT
THE TRIGONOMETRIC FUNCTIONS
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2far 2kir angle approximately Arccos Arccsc Arcctn Arcsec Arcsin arctan associated triangle axioms calculated called Cartesian coordinates Chapter circumference complex numbers consists coordinate system cos2 csc2 Definition denote element end point equal Euclidean plane example EXERCISES expression Figure following functions formulas Fourier series func function defined function with domain give given half-line Hence horizontal hypotenuse illustrate integer inverse function inverse trigonometric functions law of cosines law of sines least upper bound line segments logio mathematics measure multiple-valued function multiples negative non-negative numbers notation number whose logarithm obtain the number origin pair perpendicular polar coordinates positive number Prove radians rational numbers real number system right triangle rigid motions rule assigns sec2 second coordinate side opposite sin2 Sketch the graphs Solution solve student tan2 terminal point theorem three real numbers tion trigonometric functions trigonometric identity unit circle values vertex vertices z-axis zero