## Brief trigonometry |

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### Contents

CHAPTER | 1 |

Definition of a general angle | 4 |

Angular measure | 5 |

Copyright | |

48 other sections not shown

### Common terms and phrases

abscissa adjacent side algebraic sign angle in terms angle of depression angle of elevation associated acute angle called central angle circular sectors complementary angles computations cos0 cos2 cosine law cot 9 Cot Sec Csc cotangent decimal point definitions entry equal equation esc 9 esc2 Exercises Find expressed Find the distance Find the height find the values five functions FOUR-PLACE LOGARITHMS fourth quadrant FUNCTIONS AND RADIANS fundamental identities Hence Heron's formula horizontal interpolation law of sines law of tangents LCot left member less than 360 locate log quotient LOGARITHMS OF FUNCTIONS LTan mantissa negative obtained opposite angles ordinate periodic function plane geometry positive number Pythagorean theorem Radius real number relation right triangle sec 9 sec2 second quadrant sin2 sine and cosine Solution solving standard position subtraction formulas tan2 terminal side terms of functions theorem tower triangle ABC trigono trigonometric functions value of log x-axis