Spherical Trigonometry, for the Use of Colleges and Schools: With Numerous Examples

Macmillan, 1879 - 158 pàgines

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Pàgina 28 - If two triangles have two sides of the one equal to two sides of the...
Pàgina 49 - B . sin c = sin b . sin C cos a = cos b . cos c + sin b . sin c cos b = cos a . cos c + sin a . sin c cos A cos B cos c = cos a . cos b + sin a . sin b . cos C ..2), cotg b . sin c = cos G.
Pàgina 12 - Any two sides of a spherical triangle are together greater than the third side.
Pàgina 19 - Thus the sines of the angles of a spherical triangle are proportional to the sines of the opposite sides.
Pàgina 30 - From this proposition, it is obvious that if one angle of a triangle be equal to the sum of the other two angles, that angle is a right angle, as is shewn in Euc.
Pàgina 1 - A sphere is a solid bounded by a surface, every point of which is equally distant from a fixed point called the centre.
Pàgina 62 - A circle which touches one side of a triangle and the other two sides produced, is called an escribed circle of the triangle.
Pàgina 15 - If one angle of a spherical triangle be greater than another, the side opposite the greater angle is greater than the side opposite the less angle.

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