 | Thomas Simpson - 1748 - 84 sider
...right-angled fpherical Triangles ABC, CBD, having the fame Perpendicular BC (fee the lajl Figure), the Co-fines of the Angles at the Bafe will be to each other, directly, as the Sines of the vertical Angles : For $ Rad. : Sine BCA : : Co-fine CB fince 1 Rad. :... | |
 | Colin Macfarquhar, George Gleig - 1797 - 636 sider
...co-fine of tin: adjacent tag to the co-line of the oppofite a:i^!e. Hence, in right-angled fpherical triangles, having the fame perpendicular, the co-fines of the angles at the bafe will be lo each other, divedlly, as the fines of the vertical angles. , THEOREM IV, In any right-angled fpherical... | |
 | Thomas Hodson - 1802 - 556 sider
...cofine of the adjacent leg to the cofine of the oppofite angle. Therefore, in right-angled fpherical triangles having the fame perpendicular, the cofines of the angles, at the bale, will be to each other, diredlly, as the fines of the vertical angles. Theorem IV. In any right-angled... | |
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Hence, in right-angled fpherical triangles, having the fame perpendicular, the co-fines of the angles at the bafe will be lo each other, divedlly, as the fines of the vertical angles. 