 | Archibald Patoun - 1734 - 568 páginas
...the difference of the two Angles at the Bafe ; confequemly in any Triangle, as the fum of the fides, is to their difference, fo is the Tangent of half the fum of the Angles at the Bafe, to the Tangent of half their difference. Theor. 3. If to half the fum of two... | |
 | William Flower - 1768 - 276 páginas
...hypothenufe, to the tang" ent of its adjacent perpendicular. Lemma, As the fum of tbeßnes of two unequal arcs is to their difference, fo is the tangent of half the fum of thofe arcs, to the tangent of half their difference. And, as the fum of their cq/ines is to their difference,... | |
 | Charles Hutton - 1788 - 728 páginas
...and the dngle Included by them, to find the reft. In a plane triangle, As the fum of any two fides is to their difference, fo is the tangent of half the fum of their oppofite angles, to the tangent of half their difference. Then the half difference added to the... | |
 | Colin Macfarquhar, George Gleig - 1797 - 636 páginas
...of the fines of two unequal arches is to their dUFerence, fo is the tangent ef half the fum ofthofe arches : to the tangent of half their difference : and as the fum of the cpifines'ia to their difference, fo is the co-tangent of half the fum of the arches to the tangent... | |
 | Thomas Hodson - 1802 - 556 páginas
...either angle to the cotangent of the other angle. Thus, As the fum of the fines of two unequal arches is to their difference, fo is the tangent of half...the tangent of half their difference ; and, As the fnm of the cofines is to their difference, fo is the cotangent pf half the fum of the arches to the... | |
 | Thomas Hodson - 1806 - 488 páginas
...either angle to the cotangent of the other angle. Thus, As the fum of the fines of two unequal arches U to their difference, fo is the tangent of half the...difference; and, As the fum of the cofines is to their ditference, fo is the cotangent of half the fum of the arches to the tangent of half the difference... | |
 | John Hamilton Moore - 1807 - 586 páginas
...AC. OELIQJ/E TRIGONOMETRY. AXIOM Ht. Tn every plane triangle it will be as the fum of any two fides is to their difference, fo is the tangent of half the fum of che angles oppofite thefc fides, to the tangent of half their difference, which half difference being... | |
 | 1816 - 764 páginas
...other angles of the triangle DBA may be found by the following propoition. As the fum of AD and BD, to their difference, fo is the tangent of half the fum of the angles DBA, DAB, to the tangent of half their difference. Then { the difference of thcfe angles... | |
 | Encyclopaedia Perthensis - 1816 - 772 páginas
...other angles of the triangle DBA may be found by the following proportion. As the fum of AD and BD, to their difference, fo is the tangent of half the fum of the angles DBA, DAB. to the tangent of half their difference. Then | the difference' of thefe angles... | |
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U to their difference, fo is the tangent of half the fum of thofe arches, to the tangent of half their difference; and, As the fum of the... 