 | Horatio Nelson Robinson - Geometry - 1860 - 470 pages
...product of the tangents of the adjacent parts. 2. The radius into the sine of the middle part is equal to the product of the cosines of the opposite parts....In the application of these equations, the accent maybe omitted if tan. be changed to cotan., sin. to cosin., etc. Thus, if equation ( 13 ) were to be... | |
 | Horatio Nelson Robinson - Conic sections - 1865 - 474 pages
...product of the tangents of the adjacent parts. 2. The radius into the sine of the middle part is equal to the product of the cosines of the opposite parts....etc. Thus, if equation ( 13 ) were to be employed, it would be written, in the first instance, R sin. a = cos. b' cos.J.', to insure conformity to the... | |
 | Horatio Nelson Robinson - Trigonometry - 1880 - 228 pages
...product of the tangents of the adjacent parts. 2. The radius into the sine of the middle part is equal to the product of the cosines of the opposite parts....In the application of these equations, the accent maybe omitted if tan. be changed to cotan., sin. to cosin., etc. Thus, if equation (13) were to be... | |
 | George Albert Wentworth - Trigonometry - 1882 - 160 pages
...the product of the tangents of the aAjacent parts. Rule II. The sine of the middle part is equal to the product of the cosines of the opposite parts. These Rules are easily remembered by the expressions, tan. ad. and cos. op. The correctness of these Rules may be shown... | |
 | George Albert Wentworth - Trigonometry - 1884 - 330 pages
...the product of the \asigents of the aAjacent parts. Rule II. The sine of the middle part is equal to the product of the cosines of the opposite parts. These Rules are easily remembered by the expressions, tan. ad, and cos. op. The correctness of these Rules may be shown... | |
 | George Albert Wentworth - Navigation - 1895 - 436 pages
...the product of the i&ngents of the uaja'-ent parts. Rule II. The sine of the middle part is equal to the product of the cosines of the opposite parts. These Rules are easily remembered by the expressions, tan. ad. and cos. op. The correctness of these Rules may be shown... | |
 | George Albert Wentworth - Logarithms - 1897 - 384 pages
...the product of the t&ngents of the Adjacent parts. Rule II. The sine of the middle, part is equal to the product of the cosines of the opposite parts. These Rules are easily remembered by the expressions, tan. ad. and cos. op. The correctness of these Rules may be shown... | |
 | George Albert Wentworth - Trigonometry - 1903 - 346 pages
...the product of the tangents of the &Ajacent parts. RULE II. The sine of any middle part is equal to the product of the cosines of the opposite parts. These rules are easily remembered by the expressions tan. ad. and cos. op. The correctness of these rules may be easily... | |
 | George Albert Wentworth, George Anthony Hill - Logarithms - 1903 - 348 pages
...the product of the tangents of the Adjacent parts. RULE II. The sine of any middle part is equal to the product of the cosines of the opposite parts. These rules are easily remembered by the expressions tan. ad. and cos. op. The correctness of these rules may be easily... | |
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... 1. The radius into the sine of the middle part is equal to the product of the tangents of the adjacent parts. 2. The radius into the sine of the middle part is equal to the product of the cosines of the opposite parts. These rules are known as Napier's... 