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" B — sin A sin B cos (A — B) — - cos A... "
Plane and Spherical Trigonometry - Page 55
by James Morford Taylor - 1905 - 234 pages
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Eléments de geométrie: avec des notes

Adrien Marie Legendre - Geometry - 1812 - 510 pages
...sin a cos b -\- sin b cos a sin (o + &)= ^ sin a cos b — sin b cos a sin (a — b} = g , , . cos a cos b — sin a sin b cos ( a + b ) = ^ . , . cos a cos b + sin à sin b cos(a — b}= g . Kg. 2. Soit le rayon AC = R, l'arc. ABz= a, l'arc BD=r&, et par...
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The Elements of the Integral Calculus: With Its Applications to Geometry and ...

John Radford Young - Calculus, Integral - 1831 - 340 pages
...integral of sin. 1a.!• sin. nxdx. Since by Trigonometry cos. (A — B) = cos. A cos. B + sin. A sin. B cos. (A + B) = cos. A cos. B — sin. A sin. B .-. — cos. (A — B) -- cos. (A + B) = sin. A sin. B, or, substituting mx for A and nx for B, we have sin. mx sin. nx = — cos. (m...
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Elements of Plane and Spherical Trigonometry: With Its Applications to the ...

John Radford Young - Astronomy - 1833 - 286 pages
...division, sin. (A + B) sin. A cos. B + sin. B cos. A sin. ( A — B) sin. A cos. B — sin. B cos. A cos. ( A + B) cos. A cos. B — sin. A sin. B cos. (A — B) cos. A cos. B .f- sin. A sin. B sin. (A ± B) sin. A cos. B ± sin. B cos. A cos. (A ± B) cos. A cos. BT sin....
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The Elements of the Integral Calculus: With Its Applications to Geometry and ...

John Radford Young - Calculus, Integral - 1833 - 330 pages
...integral of sin. mx sin. nx dx. Since by Trigonometry cos. (A — B) = cos. A cos. B + sin. A sin. B cos. (A + B) = cos. A cos. B — sin. A sin. B .-. - cos. (A — B) — - cos. (A + B) = sin. A sin. B, M £ or, substituting mx for A and nx for B, we have sin. mx sin. nx = - cos....
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Inductive Geometry, Or, An Analysis of the Relations of Form and Magnitude ...

Charles Bonnycastle - Geometry - 1834 - 670 pages
...b cos. a = | fsin. (a + *) — sin. (a — 6)} And by the same process we obtain from the equations cos. (a + b) = cos. a cos. b — sin. a sin. b cos. (a — b) = cos. a cos. b + sin. a sin. b the following (11). . . cos. a cos. 6 = | jcos. (a + 6) + cos. (a — b)} (12). ....
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Inductive Geometry, Or, An Analysis of the Relations of Form and Magnitude ...

Charles Bonnycastle - Geometry - 1834 - 678 pages
...(a + b) — sin. (a — b)} And by the same process we obtain from the equations cos. (a + 6) = cos. a cos. b — sin. a sin. b cos. (a — b) = cos. a cos. b + sin. a sin. b the following (tl). . . cos. a cos. 6 = 5 jcos. (a + b) + cos. (a — b)} (12). ....
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Elements of Trigonometry, Plane and Spherical: Adapted to the Present State ...

Charles William Hackley - Trigonometry - 1838 - 328 pages
...demonstration. 83. Resume the formulae for the cosine of the sum and difference of two arcs (Art. 70.) cos a cos b — - sin a sin b cos (a + b) = cos (a — 6) = R cos a cos b + sin a sin b R subtract the first from the second, substituting p for a + b,...
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Journal für die reine und angewandte Mathematik, Volume 20

August Leopold Crelle, Carl Wilhelm Borchardt, Lazarus Fuchs, Leopold Kronecker, Helmut Hasse, Kurt Wilhelm Sebastian Hensel, Friedrich Schottky - Electronic journals - 1840 - 404 pages
...uuveriinäerlien nußn»eueu wir6, ö«ner «t GH -- ?— ^-^ — C°s'(2«^K) ^' ""' ^" Cos (a -i- b) . Cos (a — b) - Cos' a Cos' b — Sin' a Sin' b -- Cos' a ^- Sin'b ut, »o Kann 6ie vorige ?ormel euon el,o änr^estsllt ivoräen: <3lM2 oben 5« Lu6et M2N 6l»...
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Voyage au pole sud et dans l'Océanie sur les corvettes l'Astrolabe ..., Volume 1

Astrolabe ship - 1843 - 366 pages
...nous réduisons en nous rappelant les formules connues sin. (A^B) = sin. A cos. B — cos. A sin. B cos. (A — B) = cos. A cos. B + sin. A sin. B cos. 2 A = 2 sin. A cos. A on verra facilement que les inégalités précédentes deviendront (54) sin....
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Nouvelles annales de mathématiques: journal des ..., Volume 1; Volume 3

Camille Christophe Gerono, Olry Terquem, Charles-Ange Laisant, Raoul Bricard, Auguste Boulanger - Mathematics - 1844 - 656 pages
...sin(af-26) = sinacos26-|-sjn26cosa sin (a-\- 36} = sina cos 36 + sin 36 cosa etc et cos a = cos a. cos (a-}- b) = cos a cos b — sin a sin b cos (a -f-26) = cos a cos 26 — sinasin26 cos (rt-f- 36}= cos a cos 36 — sinasin36ctc .... on aura : S...
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