Libros Libros 1 - 5 de 5 sobre As the cosine of half the sum of the two sides is to the cosine of half their difference,... As the cosine of half the sum of the two sides is to the cosine of half their difference, so is the cotangent of half the contained angle to the tangent of half the sum of the other two angles. The Doctrine of Plain and Spherical Trigonometry: With Its Application and ... - Página 122
por William Hawney - 1725 - 479 páginas
Vista completa - Acerca de este libro ## A System of the Mathematics: Containing the Euclidean Geometry ..., Volumen2

James Hodgson - 1723
...every Oblique-angled Spherical Triangle it will be, . As the Sine of half the Sum of any two Sides, Is to the Sine of half their Difference ; So is the Co-tangent...half the contained Angle, To the Tangent of half the Difierence of the'oppofite Angles. > And again, As the Co-fine of half the Sura of the two Sides, To...
Vista completa - Acerca de este libro ## Philosophical essays

Richard Lovett - 1766 - 525 páginas
...which folves that Problem without a perpendicular, by the following projportion, > • • % P pp 2 As As the Sine of half the Sum of two Sides, to the fine of half their difference ; fo is the Co-tangent of half the contained Angle, to the Tangent of...
Vista completa - Acerca de este libro ## Mathematics: Compiled from the Best Authors and Intended to be the ..., Volumen2

1801 - 426 páginas
...it is contained in the following Theorems. THEOREM IV. As the sine of half the sum of two sides . Is to the sine of half their difference, So is the cotangent of half their contained angle To the tangent of half the difference of the other angles, I NOTE. NOTE. It"...
Vista completa - Acerca de este libro ## The projection and calculation of the sphere for young sea officers

S. M. Saxby - 1861
...When two tides and an included angle are given:— 1. As the sine of half the sum of the two side* is to the sine of half their difference so is the cotangent of half their contained angle to the tangent of half the difference of the other angles ; and again, 2. As...
Vista completa - Acerca de este libro ## Elements of Plane and Solid Geometry: And of Plane and Spherical ...

Gerardus Beekman Docharty - 1867 - 283 páginas
...the tangent of half the sum of the other two angles. And As the sine of half the sum of two sides is to the sine of half their difference, so is the cotangent of half the included angle to the tangent of half the difference of tlie other two angles. This is the first of...
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