Trigonometry for Beginners with Numerous ExamplesMacmillan, 1868 - 200 σελίδες |
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Σελίδα 23
... object . B P C Let P be the top of the object , and let it be required to find the height PC . Measure any distance CB in a horizontal straight line from the foot of the object ; at B observe the angle PBC . Then PC - BC tan PBC ...
... object . B P C Let P be the top of the object , and let it be required to find the height PC . Measure any distance CB in a horizontal straight line from the foot of the object ; at B observe the angle PBC . Then PC - BC tan PBC ...
Σελίδα 24
... object above the level of the observer's eye ; to obtain the height of P measured from the ground we must add to the ... object on a horizontal plane . P A B Let P be the top of an object , and let it be required to find the height PC ...
... object above the level of the observer's eye ; to obtain the height of P measured from the ground we must add to the ... object on a horizontal plane . P A B Let P be the top of an object , and let it be required to find the height PC ...
Σελίδα 25
... object we may proceed thus : measure the length AB in any direction from A ; at A observe the angle PAB , and at B observe the angle PBA , and the angle PBC . B Then in the triangle ABP the side AB is known , and the angles PAB and PBA ...
... object we may proceed thus : measure the length AB in any direction from A ; at A observe the angle PAB , and at B observe the angle PBA , and the angle PBC . B Then in the triangle ABP the side AB is known , and the angles PAB and PBA ...
Σελίδα 26
... object at a given point in the plane is observed : it is required to determine the elevation of the object above the plane . M N E Let AB be the object of known height ; BC the required elevation above the horizontal plane . Suppose a ...
... object at a given point in the plane is observed : it is required to determine the elevation of the object above the plane . M N E Let AB be the object of known height ; BC the required elevation above the horizontal plane . Suppose a ...
Σελίδα 87
... object placed on a hill . B A C Let P be the top of the object , PQ its height ; let A and B be two points in a horizontal plane , such that P , Q , A , B are all in the same vertical plane . Let PQ produced meet BA produced at C. At 4 ...
... object placed on a hill . B A C Let P be the top of the object , PQ its height ; let A and B be two points in a horizontal plane , such that P , Q , A , B are all in the same vertical plane . Let PQ produced meet BA produced at C. At 4 ...
Άλλες εκδόσεις - Προβολή όλων
Trigonometry for Beginners, with Numerous Examples Isaac Todhunter Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2010 |
Συχνά εμφανιζόμενοι όροι και φράσεις
A-sin A+B+C Algebra angle increases angle PAB angles in terms angles included AP coincides AP moves Arithmetical Arithmetical Progression B-cos Cambridge centre circle circular measure circumference cloth cos² cos³ cosec cosine cotangent Crown 8vo decreases numerically determine distance draw PM perpendicular ELEMENTARY Euclid example expression Fcap feet figure find log find the height formulæ four right angles given angle Given log Hence hypotenuse increases from 180 inverse notation L sin logarithm Mathematical multiple of four negative and decreases number of degrees observe the angle opposite side plane positive angle preceding Article present Chapter quadrant PM regular polygon right-angled triangle sec² secant Second Edition shew sin A sin sin A+ sin sin sin sin² sin³ sine student suppose Tables tangent TREATISE Trigono Trigonometrical Ratios vers yards zero ОР
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