| Charles Davies - Surveying - 1830 - 318 pages
...logarithmic cosine from 20. And R3 cosec. =-: — , or log. cosec.=2 log. R— log. sine =20— log. sine ' sine ; that is, the logarithmic cosecant is found...subtracting the logarithmic sine from 20. It has been shown (37), that R3 =tang. X cotang. ; therefore, 2 log. R.=log. tang.-flog. cotang; or, 20=log. tang. -flog,... | |
| Robert Gibson - Surveying - 1833 - 436 pages
...logarithmic cosine from 20. R2 • Andcosec. = — , or log. cosec. =2 log. R — log. sine =20 sme — log. sine ; that is, the logarithmic cosecant is found...the logarithmic sine from 20. It has been shown that R2=tang. X cotang; therefore, 2 log. R.=log. tang.+log. cotang; or, 20=log. tang.+log. cotang. 25.... | |
| Adrien Marie Legendre - Geometry - 1836 - 394 pages
...cosine from 20. And R2 cosec . = , or log. cosec.=2 log. R — log. sine— 20 — log. sine ' '• sine ; that is, the logarithmic cosecant is found...shown that R2— tang, x cotang. ; therefore, 2 log. R=:log. tang. + log. cotang.; or 20=log. tang.+log. cotang. The column of the table, next to the column... | |
| Adrien Marie Legendre - Geometry - 1837 - 376 pages
...logarithmic cosine from 20. And j> 2 cosec. = , or log. cosec.=2 log. R — log. sine =20 — log. sine sine ; that is, the logarithmic cosecant is found...the logarithmic sine from 20. It has been shown that R2=tang. x cotang. ; therefore, 2 log. R=log. tang. + log. cotang.; or 20— log. tang. + Iog. cotang.... | |
| Adrien Marie Legendre - Geometry - 1839 - 372 pages
...logarithmic cosine from 20, And R2 cosec. = , or log. cosec.=2 log. R — log, sinezr20 — log. sine sine ; that is, the logarithmic cosecant is found...therefore, 2 log. R— log. tang. + log. cotang.; or 20=nlog. tang. + log. cotang. The column of the table, next to the column of sines, and on the right... | |
| Charles Davies - Trigonometry - 1849 - 372 pages
...the logarithmic cosine from 20. And cosec. = , or log. cosec.=2 log. R—log. sine =20—log. sine sine ; that is, the logarithmic cosecant is found by subtracting the logarithmic sine from 20. The column of the table, next to the column of sines, and on the right of it, is designated by the... | |
| Elias Loomis - Trigonometry - 1855 - 192 pages
...=20—log. sine. That is, The logarithmic secant is found by subtracting the logarithmic cosine from 20; and the logarithmic cosecant is found by subtracting the logarithmic sine from 20. Thtfs .we have found the logarithmic sine of 24° 27' 34" to be 9.&17051. The logarithmic cosine of... | |
| George Roberts Perkins - Geometry - 1856 - 460 pages
...this we see that The logarithmic secant is found by subtracting the logarithmic cosine from 20 ; and the logarithmic cosecant is found by subtracting the logarithmic sine from 20. EXAMPLES. <*. 1. Find the logarithmic secant and cosecant of 41° 41'. 20. 20. sin. 41° 41'= 9.822830;... | |
| Elias Loomis - Logarithms - 1859 - 372 pages
...sine. That is, The logarithmic secant is found by subtracting the logarithmic cosine from 20 ; and the logarithmic cosecant is found by subtracting the logarithmic sine from 20. Thus we have found the logarithmic sine of 24° 27' 34" to be 9.617051. PLANE TRIGONOMETRY. 31 The... | |
| Elias Loomis - Geometry - 1871 - 302 pages
...sine. That is, The logarithmic secant is found by subtracting the logo* rilhmic cosine from 20; and the logarithmic cosecant is found by subtracting the logarithmic sine from 20. Thus we have found the, logarithmic sine of 24° 27' 34' to be 9.617051. The logarithmic cosine of... | |
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