| Levi Leonard Conant - Trigonometry - 1909 - 316 pages
...: 1. The sine of the middle part is equal to the product of the tangents of the adjacent parts. 2. **The sine of the middle part is equal to the product of the** cosines of the opposite parts. The similarity of the vowel sounds in the syllables tan-, adand co-,... | |
| Arthur Graham Hall, Fred Goodrich Frink - Trigonometry - 1910 - 204 pages
...and co-ß are the adjacent parts, b and co-« the opposite parts. Napier's rules are the following : **I. The sine of the middle part is equal to the product of the tangents of the two adjacent parts** ; II. The sine of the middle part is equal to the product of the cosines of the two opposite parts.... | |
| Alfred Monroe Kenyon, Louis Ingold - Trigonometry - 1913 - 184 pages
...1. The sine of the middle part is equal to the product of the cosines of the opposite parts. BULE 2. **The sine of the middle part is equal to the product of the tangents of the** adjacent parts. These rules may be remembered by the alliteration of the first vowel in the words cosine... | |
| Robert Édouard Moritz - Trigonometry - 1913 - 560 pages
...the product of the tangents of the adjacent parts, and the five on the left are contained in Rule 2. **The sine of the middle part is equal to the product of the** cosines of the opposite parts. These two rules are known as Napier,s Rules of the Circular Parts. 17.... | |
| Alfred Monroe Kenyon, Louis Ingold - Trigonometry - 1913 - 132 pages
...adjacent or both opposite. Napier's rules refer to these circular parts and are as follows : EULE 1. **The sine of the middle part is equal to the product of the** cosines of the opposite parts. RULE 2. The sine of the middle part is equal to the product of the tangents... | |
| George Neander Bauer, William Ellsworth Brooke - Trigonometry - 1917 - 196 pages
...follows : The sine of the middle part is equal to the product of the cosines of the opposite parts. **The sine of the middle part is equal to the product of the tangents of the** adjacent parts.* * To associate cosine with opposite and tangent with adjacent, it may be noticed that... | |
| George Neander Bauer, William Ellsworth Brooke - Trigonometry - 1917 - 344 pages
...middle part and со с and со ß are opposite parts. Napier's rules may now be stated as follows : **The sine of the middle part is equal to the product of the** cosines of the opposite parts. Tlie sine of the middle part is equal to the product of the tangents... | |
| Science - 1922 - 414 pages
...omitted. The sine of the middle part is equal to the product of the tangents of the adjacent parts. **The sine of the middle part is equal to the product of the** cosines of opposite parts. From these rules the following equations follow: sin a = sin с sin a, tan... | |
| Smithsonian Institution - Elliptic functions - 1922 - 412 pages
...omitted. The sine of the middle part is equal to the product of the tangents of the adjacent parts. **The sine of the middle part is equal to the product of the** cosines of opposite parts. From these rules the following equations follow: sin a = sin с sin a, tan... | |
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