Plane [and Spherical] Trigonometry for Colleges and Secondary SchoolsLongmans, Green, and Company, 1908 |
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... solving problems 25. Solution of right - angled triangles • · · 26. Checks upon the accuracy of the computation 27. Cases in the solution of right - angled triangles PAGE 38 38 39 40 41 41 43 43 CHAPTER IV . APPLICATIONS INVOLVING THE ...
... solving problems 25. Solution of right - angled triangles • · · 26. Checks upon the accuracy of the computation 27. Cases in the solution of right - angled triangles PAGE 38 38 39 40 41 41 43 43 CHAPTER IV . APPLICATIONS INVOLVING THE ...
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... solving many of the problems in trigonometry . * To find the length of the representative line in the drawing when the scale and the actual length are given , is an exercise in simple proportion ; so , also , to find the actual length ...
... solving many of the problems in trigonometry . * To find the length of the representative line in the drawing when the scale and the actual length are given , is an exercise in simple proportion ; so , also , to find the actual length ...
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... solving problems . * In order to draw a line that shall make a given angle with a given line at a given point , proceed as follows : Place the centre of the protractor at the given point and bring its diameter into coincidence with the ...
... solving problems . * In order to draw a line that shall make a given angle with a given line at a given point , proceed as follows : Place the centre of the protractor at the given point and bring its diameter into coincidence with the ...
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... solving most of the problems in practical trigonom- etry ; and hence , proficiency in using the tables is absolutely necessary . The larger part of the numerical answers in this book have been obtained with the aid of a five - place ...
... solving most of the problems in practical trigonom- etry ; and hence , proficiency in using the tables is absolutely necessary . The larger part of the numerical answers in this book have been obtained with the aid of a five - place ...
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... solve the prob- lems or not . If he can solve them , then he will have the pleas- urable feeling that he is to some extent independent of the book ; and he will thus be encouraged and strengthened for future work . Should he fail to ...
... solve the prob- lems or not . If he can solve them , then he will have the pleas- urable feeling that he is to some extent independent of the book ; and he will thus be encouraged and strengthened for future work . Should he fail to ...
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Términos y frases comunes
A+B+C acute angles algebraic centre CHAPTER circumscribing computation construction cos² cosec cosine cotangent deduced definitions denoted derived diedral angle draw equal equation EXAMPLES expression figure formulas geometry height Hence hypotenuse included angle inscribed circle intersection isosceles triangle law of cosines law of sines length logarithms M₁ method negative NOTE number of degrees number of sides OP₁ opposite perpendicular Plane Trigonometry polar triangle pole positive angles quadrant QUESTIONS AND EXERCISES radian measure radius regular polygon relations respectively revolving right angles right-angled triangle sec² secant Show shown sides and angles sin² sine solid angle Solve ABC sphere spherical angle spherical degrees spherical excess spherical polygon spherical triangle spherical trigonometry subtended tan² tangent terminal line tower triangle ABC triedral trigono trigonometric functions trigonometric ratios whole number
Pasajes populares
Página 35 - A sin B sin C Cosine Law: cos a = cos b cos c + sin b sin c cos A cos b = cos c cos a + sin c sin a cos B cos c = cos a cos b...
Página 25 - I. The sine of the middle part is equal to the product of the tangents of the adjacent parts.
Página 87 - The sum of the angles of a spherical triangle is greater than two and less than six right angles ; that is, greater than 180° and less than 540°. (gr). If A'B'C' is the polar triangle of ABC...
Página 85 - In any triangle the square of any side is equal to the sum of the squares of the other two sides minus twice the product of these two sides and the cosine of their included angle.
Página 55 - The lateral area of a frustum of a cone of revolution is equal to one-half the sum of the circumferences of its bases multiplied by its slant height. Hyp. S is the lateral area, C and C...
Página 111 - The ratio of a circumference of a circle to its diameter is the same for all circles. [See Art. 9 (6).] For the proof of (a), reference may be made to any plane geometry ; for instance, to Euclid VI., 33.* The proof of (6) is not contained in all geometries ; for instance, Euclid does not give...
Página 183 - The area of a regular polygon inscribed in a circle is a geometric mean between the areas of an inscribed and a circumscribed regular polygon of half the number of sides.
Página 41 - Geometry that the area of a triangle is equal to one-half the product of the base by the altitude. Therefore, if a and b denote the legs of a right triangle, and F the area, F THE RIGHT TRIANGLE.