 In the same way it may be proved that a : b : : sin. A : sin. B, and these two proportions may be written a : 6 : c : : sin. A : sin. B : sin. C. THEOREM III. t8. In any plane triangle, the sum of any two sides is to their difference as the tangent of...  Elements of Trigonometry, Plane and Spherical - Pàgina 51per Lefébure de Fourcy (M., Louis Etienne) - 1868 - 288 pàginesVisualització completa - Sobre aquest llibre
 | Leonard Magruder Passano - 1918 - 176 pàgines
...sin B cannot be greater than unity. 54. Case III may be solved by means of the theorem following : In any triangle the sum of two sides is to their difference...the tangent of half the sum of the angles opposite the two sides is to the tangent of half their difference. Proof : By Art. 51 a : b = sin A : sin B.... | |
 | Leonard Magruder Passano - 1918 - 198 pàgines
...sin B cannot be greater than unity. 54. Case III may be solved by means of the theorem following : In any triangle the sum of two sides is to their difference as the tangent of half the sum of the angles opposlte the two sides is to the tangent of half their difference. Proof : By Art. 51 a : b = sin A... | |
 | Pieter Terpstra - 1952 - 204 pàgines
[ El contingut d’aquesta pàgina està restringit ] | |
 | 1981 - 560 pàgines
[ El contingut d’aquesta pàgina està restringit ] | |
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