The Elements of Plane and Spherical Trigonometry ... |
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Side 52
... feet , and observes the angle BDC ; he then advances to E , b feet further , and observes the angle BEC = the supplement of BDC . From these observations find the sides of the triangle . 2√3 ( a + b ) ; Ans . 3 or ( 2a + b ) √3 · 3 23 ...
... feet , and observes the angle BDC ; he then advances to E , b feet further , and observes the angle BEC = the supplement of BDC . From these observations find the sides of the triangle . 2√3 ( a + b ) ; Ans . 3 or ( 2a + b ) √3 · 3 23 ...
Side 81
... feet , A = 23 ° 50 ′ 15 ′′ , B = 54 ° 28 ′ 30 ′′ , C = 147 ° 32 ′ 50 ′′ . Ans . 278.7 feet . G Having given the numerical value of a trigonometrical ratio to LOGARITHMS . 81.
... feet , A = 23 ° 50 ′ 15 ′′ , B = 54 ° 28 ′ 30 ′′ , C = 147 ° 32 ′ 50 ′′ . Ans . 278.7 feet . G Having given the numerical value of a trigonometrical ratio to LOGARITHMS . 81.
Side 99
... feet long just reaches to the top of a house when its foot is 20 feet from the base ; find the height of the house . Ans . 56.56 feet . 7. A ship sails North 100 miles , then East 50 miles ; find the distance made good . Ans . III.8 ...
... feet long just reaches to the top of a house when its foot is 20 feet from the base ; find the height of the house . Ans . 56.56 feet . 7. A ship sails North 100 miles , then East 50 miles ; find the distance made good . Ans . III.8 ...
Side 101
... feet above the level of the sea , is observed from a ship to have an elevation of 3 ° 10 ′ 30 ′′ ; what is the distance of the ship from the light- house ? Ans . 570 87 yards . 9. A headland was seen to bear from a ship N.W. , and after ...
... feet above the level of the sea , is observed from a ship to have an elevation of 3 ° 10 ′ 30 ′′ ; what is the distance of the ship from the light- house ? Ans . 570 87 yards . 9. A headland was seen to bear from a ship N.W. , and after ...
Side 104
... feet , the area will be in square feet , when in yards , square yards , & c . b Examples for Practice . 35 feet , c = 104 PLANE TRIGONOMETRY . AREAS OF TRIANGLES. ...
... feet , the area will be in square feet , when in yards , square yards , & c . b Examples for Practice . 35 feet , c = 104 PLANE TRIGONOMETRY . AREAS OF TRIANGLES. ...
Andre utgaver - Vis alle
The Elements of Plane and Spherical Trigonometry Alfred Challice Johnson Ingen forhåndsvisning tilgjengelig - 2019 |
The Elements of Plane and Spherical Trigonometry: Theoretical and Practical ... Alfred Challice Johnson Ingen forhåndsvisning tilgjengelig - 2018 |
The Elements of Plane and Spherical Trigonometry: Theoretical and Practical ... Alfred Challice Johnson Ingen forhåndsvisning tilgjengelig - 2015 |
Vanlige uttrykk og setninger
altitude angle being given angle of depression angle of elevation azimuth Cape Cape Clear Cape Race circle Colatitude Cosec Cosine Cotangent CP CP Diff equal equation Examples for Practice find side find the angle find the area find the distance find the height find the latitude find the sides Find the value flagstaff formula Given Log greater than 90 Haversine headlands horizontal plane hour angle included angle latitude 50 lighthouse Logarithms longitude meridian miles negative observes the angle perp perpendicular place in latitude prime vertical required the distance right angles right-angled triangle Secant ship sides are given sine spherical triangle Spherical Trigonometry station subtracted from 180 Sun's altitude Sun's declination Tangent tower trigonometrical ratios Vers Versine Vertex yards دو وو
Populære avsnitt
Side 85 - IF a side of any triangle be produced, the exterior angle is equal to the two interior and opposite angles ; and the three interior angles of every triangle are equal to two right angles.
Side 85 - The angles which one straight line makes with another upon one side of it, are either two right angles, or are together equal to two right angles.
Side 75 - To raise a number to any power, multiply the Log. of the number by the index of the power; the result will be the Log.
Side 62 - Suppose a* =n, then x is called the logarithm of n to the böge a ; thus the logarithm of a number to a given base is the index of the power to which the base must be raised to be equal to the number. The- logarithm of n to the base a is written Iog0 n ; thus log„ii = a; expresses the same relation, as a* = n.
Side 85 - IF a straight line fall upon two parallel straight lines, it makes the alternate angles equal to one another; and the exterior angle equal to the interior and opposite upon...
Side 40 - The sides of a triangle are proportional to the sines of the opposite angles.
Side 72 - See the table at the end of this number. To find from the table the length of any given number of degrees and minutes, look for the degrees at the top of the page, and the minutes on the side; then against the minutes, and under the degrees, will be the length of the arc in nautical miles. 67. Meridional Difference of Latitude. — An arc of Mercator's meridian contained between two parallels of latitude, is called meridional difference of latitude. It is found by subtracting...
Side 53 - The RADIUS of a sphere is a straight line drawn from the centre to any point in surface, as the line C B.
Side 41 - In any triangle, the square of the side opposite an acute angle is equal to the sum of the squares of the other two sides, minus twice the product of one of these sides and the projection of the other side upon it.
Side 76 - Divide the logarithm of the number by the index of the root; the result will be the logarithm of the root. EXAMPLE.— Extract (a) the square root of 77,851; (6) the cube root of 698,970; (c) the 2.4 root of 8,964,300.