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الكتب الكتب 1 - 3 من 3 فيGiven the sum or difference of two angles, and the ratio of their sines, to find....
" Given the sum or difference of two angles, and the ratio of their sines, to find the angles, This... "
Transactions of the Cambridge Philosophical Society - الصفحة 128
بواسطة Cambridge Philosophical Society - 1838
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Transactions of the Cambridge Philosophical Society

1838
...•-•-— (2), A AA sin c* a sin 7 /\ c sin a sin as A ft* + ay=C', -- ?r = l .^f (3). ,AA sin o# a sin /3 27. The application of the formulae in these tables,...the two angles: there are given 0 + \//, or else 0 —>jk and . Y> to determine 0 and \1/. sin 0 ' First solution. Let e be an angle, such that sin e...
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Principles of Modern Geometry, with Numerous Applications to Plane and ...

John Mulcahy - 1862 - عدد الصفحات: 234
...relative position being supposed known as in Art. 17). For the question is always reducible to this : — Given the sum or difference of two angles, and the ratio of their sines, to find the angles. Now, knowing the ratio of the sines, we know the ratio of their sum to their difference, which gives...
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A treatise on spherical trigonometry, by W.J. M'Clelland and T. Preston, الجزء 2

William John M'Clelland - 1886
...between which successive pair of points it lies). For the problem is reducible to the following : — Given the sum or difference of two angles, and the ratio of their sines ; find the angles. Since the ratio of sines is known, we know the ratio tan (half sum) : tan (half...
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