| John Bonnycastle - Trigonometry - 1806 - 464 pages
...angle and two right angles, or 180°. Thus B oc is the complement of A o B, and B oa is its supplement. The sine of an arc is a right line drawn from one end of the arc perpendicular to the diameter which passes through the other end. Thus BD is the sine... | |
| Samuel Webber - Mathematics - 1808 - 466 pages
...Rhumbs here are chords, answering to the points of the Mariners' Compass, which are 32 in the circle. t The sine of an arc is a right line, drawn from one end of an arc perpendicular to the radius, drawn to the other end. The versed sine is the part of the... | |
| Jeremiah Joyce - Handbooks, vade-mecums, etc - 1810 - 356 pages
...supplement: thus AB is the supplement of BD, the one being 55° and the other 125°. 9. A chord or subtense of an arc is a right line drawn from one extremity 'of an arc to the other: thus BE is the chord or subtense of the arc BAE or BD E. . 10. The sine, or right... | |
| Thomas Keith - Navigation - 1810 - 478 pages
...The sine of an arc of 30° is equal to half the, radius.-^ (L) TJie tangent\ of an arc is a straight line drawn from one extremity of the arc, perpendicular to the diameter, and is terminated by a straight line drawn through the centre of the circle and the other extremity... | |
| Charles Hutton - Mathematics - 1811 - 442 pages
...of the arc AB, and EF the versed sine of the arc EDB. 7. The Sine, or Right Sine, of an arc, is the line drawn from one extremity of the arc, perpendicular...extremity. Thus, BF is the sine of the arc AB, or of the supplemental arc BDE. Hence the sine (BF) is half the chord (BG) of the double arc (BAG). 10.... | |
| Edward Augustus Kendall - 1811 - 462 pages
...is the chord or subtense of the arc BAE, or BDE. The sine, or, as it is sometimes called, the riglrt sine, of an arc, is a right line drawn from one extremity of the arc, perpendicular to the diameter passing through the other extremity : thus BF is the sine of the arc AB, or BD. The versed sine of... | |
| Edward Augustus Kendall - Encyclopedias and dictionaries - 1811 - 476 pages
...is the chord or subtense of the arc BAE, or BDE. The sine, or, as it is sometimes called, the right sine, of an arc, is a right line drawn from one extremity of the arc, perpendicular to the diameter passing through the other extremity: thus BF is the sine of the arc AB, or BD. The versed sine of an... | |
| Francis Nichols - Plane trigonometry - 1811 - 162 pages
...DHB is the supplement of AB, and the angle DCB is the supplement of ACB. 15. DEF. 3. The chord of any arc is a right line drawn from one extremity of the arc to the other. Let the points B and E be in the circle, and join B, E; then the straight line BE is... | |
| Charles Hutton - Mathematics - 1812 - 620 pages
...an arc of 50°, then its supplement BDE will be 1 30?. f. The Sine, or Right Sine, of an arc, is the line drawn from one extremity of the arc, perpendicular to the diameter which passes thrjiigh the other extremity. Thus, BF is the sine of tlie arc AB, or of the supplemental arc DDE.... | |
| Charles Butler - Mathematics - 1814 - 528 pages
...the arc BML, but also of the arc BKL. 12. THE SINE of an arc, is a straight line drawn from one end of the arc, perpendicular to the diameter which passes through the other end of the arc. Thus, BD is the sine of the arc AB, and of the angle ACB. Cor. Hence the sine of an... | |
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