An elementary treatise on plane trigonometryMacmillan, 1858 - 106 sider |
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Resultat 1-5 av 12
Side 12
... elevation of any object , that is to say , the angle which the line joining the object and the eye of the observer makes with the horizontal plane , as the angle ACB in the case above . We can also observe the angle which two objects in ...
... elevation of any object , that is to say , the angle which the line joining the object and the eye of the observer makes with the horizontal plane , as the angle ACB in the case above . We can also observe the angle which two objects in ...
Side 14
... elevation is 40 ° , the observer being 140 feet distant , and his eye 5 feet from the ground , having given that tan 40 ° .85 . Ans . 124 feet . 16. Construct the angle whose tangent is √2 . 17. Construct the angle whose sine is √2-1 ...
... elevation is 40 ° , the observer being 140 feet distant , and his eye 5 feet from the ground , having given that tan 40 ° .85 . Ans . 124 feet . 16. Construct the angle whose tangent is √2 . 17. Construct the angle whose sine is √2-1 ...
Side 15
... . 5. The supplement of one angle of a triangle is double the complement of another , and triple that of the third find the angles . Ans . 81 , 4019 , 57 degrees . 6. A person observes the angular elevation of a column EXAMPLES . 15.
... . 5. The supplement of one angle of a triangle is double the complement of another , and triple that of the third find the angles . Ans . 81 , 4019 , 57 degrees . 6. A person observes the angular elevation of a column EXAMPLES . 15.
Side 16
... elevation of its summit is 45 ° . After ascending 1 mile up a slope of 30 ° its elevation is found to be 60 ° . The height of the mountain is 3 + 1 2 miles . 9. A person at the edge of a river observes the elevation a of a tower on the ...
... elevation of its summit is 45 ° . After ascending 1 mile up a slope of 30 ° its elevation is found to be 60 ° . The height of the mountain is 3 + 1 2 miles . 9. A person at the edge of a river observes the elevation a of a tower on the ...
Side 17
... elevation of a tower is observed to be 45 ° ; find its height . Ans . 50 feet . 16. Two spectators at two stations , distant 2a from each other , observe the elevation of a kite to be a at each station , and the angle subtended by the ...
... elevation of a tower is observed to be 45 ° ; find its height . Ans . 50 feet . 16. Two spectators at two stations , distant 2a from each other , observe the elevation of a kite to be a at each station , and the angle subtended by the ...
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An Elementary Treatise on Plane Trigonometry Richard Dunkley Beasley Ingen forhåndsvisning tilgjengelig - 2019 |
Vanlige uttrykk og setninger
1+tan a+b+c a+B+y a+tan angle AOP AOP₁ arithmetical progression BERNARD DRAKE circular measure cloth complement Construct the angle cos² cosec cosine cot² cotangent Crown 8vo decimal distance equal equation Euclid EXAMPLES Fcap feet Fellow of St Fellow of Trinity Find the number foot formulæ given height horizontal plane hypothenuse inscribed circle John's College late Fellow loga logarithms M.A. Fellow magnitude miles negative angle number of degrees observes the angle opposite sides perpendicular polygon positive quadrant radii radius respectively revolving line right angle right-angled triangle sec² secant Second Edition Sermons sewed Shew sides and angles sin ß sin² sin² ß sin³ tan¹ tan² tan³ tangent tower Treatise Trigono Trigonometrical Ratios Trinity College unit of length University of Cambridge vers yards
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