A Collection of Problems and Examples Adapted to the "Elementary Course of Mathematics.": With an Appendix Containing the Questions Proposed During the First Three Days of the Senate-House Examinations in the Years 1848, 1849, 1850, and 1851J. Deighton, 1851 - 173 σελίδες |
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Αποτελέσματα 1 - 5 από τα 24.
Σελίδα 46
... tangent of which is tan 0 . 5 . - Write down a formula for all angles the cosine of which is 1 . = 6. Express all the trigonometrical functions in terms of the sine . 7. Express the same in terms of the tangent . 8 . The same in terms ...
... tangent of which is tan 0 . 5 . - Write down a formula for all angles the cosine of which is 1 . = 6. Express all the trigonometrical functions in terms of the sine . 7. Express the same in terms of the tangent . 8 . The same in terms ...
Σελίδα 51
... tangents of two angles are and tively , find the tangent of their sum . respec- 13 . Find from the equation Ꮎ tan - = cosec 0 ― sin e . 2 14 . If cot x = n cot ( a n - sin ( a -2x ) = - x ) , then 1 n + 1 sin a . 15. Express cos 50 in ...
... tangents of two angles are and tively , find the tangent of their sum . respec- 13 . Find from the equation Ꮎ tan - = cosec 0 ― sin e . 2 14 . If cot x = n cot ( a n - sin ( a -2x ) = - x ) , then 1 n + 1 sin a . 15. Express cos 50 in ...
Σελίδα 55
... tangent of half the difference of the acute angles , then 15 . x y1 + t : 1 - t . Given the angles of a triangle , and the radius of the inscribed circle , determine the sides . 16. The triangle ABC has its angles A , B , C in the ...
... tangent of half the difference of the acute angles , then 15 . x y1 + t : 1 - t . Given the angles of a triangle , and the radius of the inscribed circle , determine the sides . 16. The triangle ABC has its angles A , B , C in the ...
Σελίδα 56
... tangents of the angles of a triangle are in harmonical progression ; given one of the sides , and the difference of the first and third angle ; solve the triangle . 28. The perimeter of a triangle : the diameter of the A B C inscribed ...
... tangents of the angles of a triangle are in harmonical progression ; given one of the sides , and the difference of the first and third angle ; solve the triangle . 28. The perimeter of a triangle : the diameter of the A B C inscribed ...
Σελίδα 59
... tangent of which is ' 015 , at a place the horizontal distance of which from the foot of the tower is 100 feet ; determine the height of the tower . ILLUSTRATIONS OF THE CIRCULAR MEASURE . 1. Find the number TRIGONOMETRY . 59.
... tangent of which is ' 015 , at a place the horizontal distance of which from the foot of the tower is 100 feet ; determine the height of the tower . ILLUSTRATIONS OF THE CIRCULAR MEASURE . 1. Find the number TRIGONOMETRY . 59.
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Συχνά εμφανιζόμενοι όροι και φράσεις
angular points arithmetical arithmetical mean arithmetical series axis base bisects centre of gravity chord circle concave convex lens cos² cosec curve cylinder Describe determine diameter direction distance Divide drawn elastic balls ellipse equal equation equilibrium feet find the height Find the number find the position Find the velocity fluid focal length force geometrical focus geometrical progression geometrical series given point given velocity given weight horizontal plane hyperbola immersed inches incident inclined plane inscribed latus rectum luminous point mirror motion moving Multiply observed parabola parallel parallelogram pencil of rays perpendicular placed pressure proportional prove pullies quantities radii radius ratio reflexion refracted respectively right angle shew sides sin² specific gravity sphere spherical square St John's College straight line string passing Subtract surface tangent tower triangle vertex
Δημοφιλή αποσπάσματα
Σελίδα 111 - If two triangles have two sides of the one equal to two sides of the...
Σελίδα 128 - To divide a given straight line into two parts, so that the rectangle contained by the whole and one of the parts, shall be equal to the square of the other part.
Σελίδα 111 - If a straight line be divided into two equal parts, and also into two unequal parts, the rectangle contained by the unequal parts, together with the square on the line between the points of section, is equal to the square on half the line.
Σελίδα 112 - EQUAL straight lines in a circle are equally distant from the centre ; and those which are equally distant from the centre, are equal to one another.
Σελίδα 144 - ... a circle. The angle in a semicircle is a right angle: the angle in a segment greater than a semicircle is less than a right angle ; and the angle in a segment less than a semicircle is greater than a right angle.
Σελίδα 160 - Triangles upon equal bases, and between the same parallels, are equal to one another.
Σελίδα 112 - If two triangles have one angle of the one equal to one angle of the other and the sides about these equal angles proportional, the triangles are similar.
Σελίδα 160 - In any right-angled triangle, the square which is described upon the side subtending the right angle, is equal to the squares described upon the sides which contain the right angle.