## Plane Trigonometry: Twelve Chapters from First-year Mathematics for Colleges |

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### Contents

Trigonometric Functions of Acute Angles | 1 |

Solution of Right Triangles | 9 |

Approximate Numbers and Computation | 22 |

Copyright | |

10 other sections not shown

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### Common terms and phrases

acute angle angle of elevation approximate numbers arccos arctan f base central angle chord colog cologarithm common logarithms components cos2 cot2 Cotangent decimal point diagonal digit equal Example feet high Find the angle Find the area Find the radius Find the value five-place tables Find following numbers following triangles four-place tables Find given height Heron's formula inches interpolation inverse inverse functions inverse trigonometric function isosceles triangle law of cosines law of sines law of tangents log cot Log Value Log loga Logarithmic solution Macmillan Logarithmic mantissa measured miles an hour mils Mollweide's equation obtained parallelogram pole principal value quadrant radians respectively right triangle scientific notation sector segment significant figures sin2 solution with five-place solution with four-place Solve the following Solve the triangle square root subtends an angle subtraction tan2 terminal side tower triangle ABC trigono trigonometric functions Value Log Value vertical