A Concise System of Mathematics ...Oliver & Boyd, 1830 - 120 σελίδες |
Αναζήτηση στο βιβλίο
Αποτελέσματα 1 - 5 από τα 32.
Σελίδα 102
... station 258 feet from the first place , their distance subtended an angle of 63 ° 28 ' . Required the distance of the station from the other . Ans . 625-469 feet . • When the angle is greater than 90 ° , take the sine , tangent , & c ...
... station 258 feet from the first place , their distance subtended an angle of 63 ° 28 ' . Required the distance of the station from the other . Ans . 625-469 feet . • When the angle is greater than 90 ° , take the sine , tangent , & c ...
Σελίδα 181
... station from its top . Ans . 1417-01 feet . PROB . IX . From the top of a known height AB , to find the distance of an object C , on the plane below . Take the angle of depression CAD ; then , in the triangle ABC , right - angled at B ...
... station from its top . Ans . 1417-01 feet . PROB . IX . From the top of a known height AB , to find the distance of an object C , on the plane below . Take the angle of depression CAD ; then , in the triangle ABC , right - angled at B ...
Σελίδα 182
... stations C and D , in a vertical plane , and measure CD , and at C take the elevation of D above C , viz . GCD 31 ° 26 ′ , and the elevations or depressions of the top and bottom of the height , viz . ACF 53 ° 26 ' , and BCF 18 ° 32 ...
... stations C and D , in a vertical plane , and measure CD , and at C take the elevation of D above C , viz . GCD 31 ° 26 ′ , and the elevations or depressions of the top and bottom of the height , viz . ACF 53 ° 26 ' , and BCF 18 ° 32 ...
Σελίδα 183
... station was 38 ° 25 ' . Another station was taken 450 feet from the first , but neither on a level with it nor in the direction of the hill . the first station , the line from the other station to the top of the hill subtended an angle ...
... station was 38 ° 25 ' . Another station was taken 450 feet from the first , but neither on a level with it nor in the direction of the hill . the first station , the line from the other station to the top of the hill subtended an angle ...
Σελίδα 184
... station to be 55 ° 40 ′ , and measured from the station to the trees 588 and 672 yards . Required their dis- Ans . 592-967 yards . tance . PROB . XIII . To find the distance between two places A and B , both of them inaccessible . Take ...
... station to be 55 ° 40 ′ , and measured from the station to the trees 588 and 672 yards . Required their dis- Ans . 592-967 yards . tance . PROB . XIII . To find the distance between two places A and B , both of them inaccessible . Take ...
Περιεχόμενα
13 | |
19 | |
25 | |
32 | |
42 | |
52 | |
60 | |
62 | |
67 | |
73 | |
93 | |
99 | |
105 | |
116 | |
131 | |
137 | |
172 | |
187 | |
200 | |
207 | |
213 | |
214 | |
221 | |
228 | |
230 | |
293 | |
306 | |
312 | |
326 | |
333 | |
339 | |
346 | |
347 | |
357 | |
368 | |
378 | |
1 | |
13 | |
18 | |
36 | |
42 | |
46 | |
Συχνά εμφανιζόμενοι όροι και φράσεις
9 inches ABCD angle ABC axes axis balls base breadth cask centre chord circle circumference Cosine Cotang cubic feet cubic inches curve cylinder Degrees depth diagonal diameter difference directrix distance divided divisor draw ellipse equal feet 6 inches feet long field field-book find the area fleur-de-lis fluxion foot frustum Gauge-Points girt given hyperbola hypotenuse imperial gallons inches broad logarithm mean proportional measured multiply opposite parabola parallel perches perpendicular poles PROB PROP quantity quotient radius ratio rectangle Required the area Required the content Required the height right angles right ascension RULE segment side AC solid specific gravity spherical triangle square root square yard station straight line subtract taken Tang tangent Theodolite thickness triangle ABC ullage wet inches
Δημοφιλή αποσπάσματα
Σελίδα 30 - In each succeeding term the coefficient is found by multiplying the coefficient of the preceding term by the exponent of a in that term, and dividing by the number of the preceding term.
Σελίδα 19 - Divide the first term of the dividend by the first term of the divisor, and write the result as the first term of the quotient. Multiply the whole divisor by the first term of the quotient, and subtract the product from the dividend.
Σελίδα 58 - The sum of any number of terms in arithmetical progression is equal to the sum of the extremes multiplied by half the number of terms.
Σελίδα 335 - A sphere is a solid bounded by a curved surface, every point of which is equally distant from a point within called the center.
Σελίδα 336 - If two triangles have the three sides of the one equal to the three sides of the other, each to each, the triangles are congruent.
Σελίδα 19 - Powers of the same quantity are divided by subtracting the exponent of the divisor from that of the dividend ; the remainder is the exponent of the quotient.
Σελίδα 58 - In any series of numbers in arithmetical progression, the sum of the two extremes is equal to the sum of any two terms equally distant from them; as in the latter of the above series 6 + 1=4+3, and =5+2.
Σελίδα 13 - C, indicates that the sum of A and B is to be multiplied by C ; and (A + B) -=- C, indicates that the sum of A and B is to be divided by C.
Σελίδα 130 - So IS THE AREA OF THE CIRCLE, TO THE AREA OF THE SECTOR.
Σελίδα 141 - ... containing ten pounds avoirdupois weight of distilled water, weighed in air, at the temperature of 62...