| Philip Ronayne - 1738 - 421 páginas
...is in Words, half the Sum of the Legs, Is to half their Difference, As the Tangent of half the Sum **of the oppofite Angles, Is to the Tangent of half their Difference : But Wholes are as their Halves** ; wherefore the Sum of the Legs, Is to their Difference, As the Tangent of half the Sum of the Angles... | |
| John Ward (of Chester.) - 1747 - 480 páginas
...that is in Words, half the Sum of the Legs is to half their Difference, as the Tangent of half the Sum **of the oppofite Angles is to the Tangent of half their Difference : But Wholes are as their Halves** ; wherefore the Sum of the Legs is to their Difference, as the Tangent of half the Sum of the Angles... | |
| John Muller - 1773 - 130 páginas
...BC-CA:BD + DA. PROP. Fig. 27: 80. In any unequal fided triangle ABQ the fum of the fides BC, AC, is to **their difference, as the tangent of half the fum of the oppofite angles** A, B, is to the tangent of half their difference. Let the fame conftruction be as the laft, draw AF,... | |
| John Hamilton Moore - 1791 - 296 páginas
...FG, »hat is, half the Sum of the Legs is to half their Difference, as the Tangent of halt the Sum **of the oppofite Angles is to the Tangent of half their Difference : but Wholes are as their Halves** ; wherefore the Sum of the Lege is to their Différence, as the Tangent of half the Sum of the Angles,... | |
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