Cerca Imatges Maps YouTube Gmail Drive Calendar Traductor Més »
Inicia la sessió
Llibres Llibres 1 - 10 de 15 sobre ... the angle to be 30°. Find the height of the tree and the breadth of the river,....
" ... the angle to be 30°. Find the height of the tree and the breadth of the river, if the two points of observation are in the same horizontal line at the base of the tree. "
Plane and Spherical Trigonometry - Pągina 18
per James Morford Taylor - 1905 - 234 pągines
Visualització completa - Sobre aquest llibre

A mathematical course for the University of London. (2nd)

1874
...the opposite bank to be 60°; and when he retires 100 feet from the edge of the river, he observes the angle to be 30°. Find the height of the tree and the breadth of the river. 13. In any triangle ABC the tangent of half the difference of the angles В and С is to the tangent...
Visualització completa - Sobre aquest llibre

London graduation mathematics, questions in arithmetic and algebra set from ...

Thomas Kimber - 1880
...the opposite bank to be 60°; and when he retires 100 feet from the edge of the river, he observes the angle to be 30°. Find the height of the tree and the breadth of the river. 13. In any triangle ABC the tangent of half the difference of the angles В and С is to the tangent...
Visualització completa - Sobre aquest llibre

Report on Foreign Systems of Naval Education

James Russell Soley - 1880 - 335 pągines
...tree on the opposite bank is a, and that the depression of the top of its image in the water is /3 ; find the height of the tree and the breadth of the river. 11. State and prove Demoivre's Theorem when the index is a whole number. State it completely when the...
Visualització completa - Sobre aquest llibre

Examinations Papers

1884
...opposite bank to be 60°, and when he retires 40 feet from the river's edge he finds the angle to be 45°. Find the height of the tree and the breadth of the river. III. — 1. Find the highest common divisor of ab (x* + y») + xy (a2 + ft»), ab (a:3 + y3} + xy (a?y...
Visualització completa - Sobre aquest llibre

Senate Documents, Otherwise Publ. as Public Documents and Executive ..., Volum 3

United States. Congress. Senate - 1880
...tree on the opposite bank is a, and that the depression of the top of its image in the water is 3 ; find the height of the tree and the breadth of the river. 11. State and prove Demoivre's Theorem when the index is a whole number. State it completely when the...
Visualització completa - Sobre aquest llibre

Elementary Trigonometry

John Maximilian Dyer - 1891 - 266 pągines
...tree on the opposite bank to be 60° Whi-n ho retires 100 ft. from the edge of the river the angle i« 30°. Find the height of the tree and the breadth of the river. (5) In a right-angled triangle with a right angle at C, if a = 576-12, e = 873-14, find A and В :...
Visualització completa - Sobre aquest llibre

Elements of Plane and Spherical Trigonometry: With Numerous Examples

Edward Albert Bowser - 1892 - 172 pągines
...angle subtended by a tree on the opposite bank to be 60°, and when he retires 40 feet from the river's bank he finds the angle to be 30° ; find the height of the tree and the breadth of the river. Ans. 20 V3 ; 20. 4. What is the height of a hill whose angle of elevation, taken at the bottom, was...
Visualització completa - Sobre aquest llibre

A Treatise on Plane and Spherical Trigonometry: And Its Applications to ...

Edward Albert Bowser - 1892 - 368 pągines
...angle subtended by a tree on the opposite bank to be 60°, and when he retires 40 feet from the river's bank he finds the angle to be 30° ; find the height of the tree and the breadth of the river. Ans. 20 V3; 20. 4. What is the height of a hill whose angle of elevation, taken at the bottom, was...
Visualització completa - Sobre aquest llibre

Report of the Council of Public Instruction of the North-West Territories of ...

Northwest Territories. Council of Public Instruction - 1897
...opposite bank to subtend an angle of 7o\ He receded 20 ft.; the tree then subtended an angle of 60°. Find the height of the tree and the breadth of the river. SECOND CLASS. POETICAL LITERATURE. Time— Three Hour a. 1. What is the thesis which Goldsmith undertakes...
Visualització completa - Sobre aquest llibre

Plane Trigonometry for Colleges and Secondary Schools

Daniel Alexander Murray - 1899
...opposite bank is 60° ; when he retires 100 ft. from the edge of the river the angle of elevation is 30°. Find the height of the tree and the breadth of the river. -•""11. Find the distance in space travelled in an hour, in consequence of the earth's rotation,...
Visualització completa - Sobre aquest llibre




  1. La meva col·lecció
  2. Ajuda
  3. Cerca de llibres avanēada
  4. Descarrega PDF