| Adrien Marie Legendre - Geometry - 1874 - 512 pages
...c + log sin B — 10 ; hence, we may write the following EULE. Add together the logarithms of tlte **two sides and the logarithmic sine of their included angle / from this sum** tubtract 10 ; tlie remainder will be the logarithm of double tAe area of the triangle, find, from the... | |
| Charles P. Florent Baillairgé - Measurement - 1876 - 306 pages
...'remaining the same, to determine the area for an enclosed angle=45° 1 Ans. 588.6664. (12) By Logarithms. **Add together the logarithms of the two sides and the logarithmic sine of their** enclosed angle ; from this sum take 10, log. of the radins, and the remainder will be the log. of double... | |
| Charles Davies, Adrien Marie Legendre - Geometry - 1885 - 538 pages
...5— (Trig., Art. 30), and applying logarithms, we have hence, we may write the following RULE. — **Add together the logarithms of the two sides and the...sine of their included angle; from thi-s sum subtract** 1 0 ; the remainder will be the logarithm of double the area of the triangle. Find, from the table,... | |
| Joseph Benjamin Rider - Engineering - 1901 - 556 pages
...=. area of Д required. Area, when two sides and included angle are given, see figure 21. RULE. — **Add together the logarithms of the two sides and the...sine of their included angle ; from this sum subtract** ю ; the remainder will be the logarithm of double the area of the triangle. Find, from the table,... | |
| Thomas J. Foster - Coal mines and mining - 1905 - 710 pages
...two sides and the natural sine of the included angle, and divide the product by 2. Or, by logarithms, **add together the logarithms of the two sides and the logarithmic sine of** the included angle, and from the sum subtract the logarithm of 2, and the result will be the logarithm... | |
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