A Popular Course of Pure and Mixed Mathematics ...: With Tables of Logarithms, and Numerous Questions for ExerciseG. B. Whittaker, 1825 - 372 sider |
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Resultat 1-5 av 100
Side xxv
... sine of the angle of incidence is to the sine or the angle of refraction in a given ratio . Newton , after considering the reflection and refraction of light , proceeded to treat of its inflexion . Having admitted a ray of light through ...
... sine of the angle of incidence is to the sine or the angle of refraction in a given ratio . Newton , after considering the reflection and refraction of light , proceeded to treat of its inflexion . Having admitted a ray of light through ...
Side 344
... sine of the arc AB , or of the angle ACB measured by that arc . 2. If the arc ÈB = 90o - arc BA , or in other words , if the ' arc EB is the complement of the arc BA , its sine GB is the sine of the complement , or the cosine of the arc ...
... sine of the arc AB , or of the angle ACB measured by that arc . 2. If the arc ÈB = 90o - arc BA , or in other words , if the ' arc EB is the complement of the arc BA , its sine GB is the sine of the complement , or the cosine of the arc ...
Side 344
... sine of an arc of 30 ° is half the radius . 5. The definition of the sine also shews that the sine of any acute angle BCA is the same as that of the obtuse angle a CB = 180 ° -angle BCA , which is called its supplement . 6. The cosine ...
... sine of an arc of 30 ° is half the radius . 5. The definition of the sine also shews that the sine of any acute angle BCA is the same as that of the obtuse angle a CB = 180 ° -angle BCA , which is called its supplement . 6. The cosine ...
Side 344
... sin A = 2 cos2 A - 1 ( by writing for sin A , its value 1 - cos2 A ) . It is therefore easy to obtain the sine and cosine of twice any arc of which we already know the sine and cosine . With the same facility we may find the sine and ...
... sin A = 2 cos2 A - 1 ( by writing for sin A , its value 1 - cos2 A ) . It is therefore easy to obtain the sine and cosine of twice any arc of which we already know the sine and cosine . With the same facility we may find the sine and ...
Side 344
... sine , we may assume 0.000004848 , & c . for the sine of the arc of 1 " . Double , triple , & c . this decimal fraction , and we shall have the sine of 2 ′′ , 3 " , & c . We might have calculated the sines 2 " , and then that of 3 ...
... sine , we may assume 0.000004848 , & c . for the sine of the arc of 1 " . Double , triple , & c . this decimal fraction , and we shall have the sine of 2 ′′ , 3 " , & c . We might have calculated the sines 2 " , and then that of 3 ...
Innhold
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Vanlige uttrykk og setninger
ABC is equal altitude angle ABC angle BAC axis bisected centre circle ABCD circumference co-efficient cone conic section convergency curve cylinder described diameter divided draw equal angles equation equiangular equimultiples factors fluxion fore fraction geometrical progression given straight line gnomon greater Hence hyperbola join less Let ABC magnitudes multiple opposite parabola parallel parallelogram perpendicular plane angles polygon prism produced proportional pyramid Q. E. D. PROP Q. E. D. Proposition radius rectangle rectangle contained rectilineal figure remaining angle right angles segment shewn side BC similar sine solid angle solid parallelopiped spherical triangle square of AC subtract surd tang tangent Theorem third tiple triangle ABC vertex whence Wherefore
Populære avsnitt
Side 172 - If, from the ends of the side of a triangle, there be drawn two straight lines to a point within the triangle, these shall be less than, the other two sides of the triangle, but shall contain a greater angle. Let...
Side 191 - 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.
Side 190 - If a straight line be divided into any two parts, the rectangle contained by the whole and one of the parts, is equal to the rectangle contained by the two parts, together with the square of the aforesaid part.
Side 196 - AB be the given straight line ; it is required to divide it 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.
Side 192 - If a straight line be bisected and produced to any point, the rectangle contained by the whole line thus produced and the part of it produced, together •with the square on half the line bisected, is equal to the square on the straight line which is made up of the half and the part produced.
Side 177 - That, if a straight line falling on two straight lines make the interior angles on the same side less than two right angles, the two straight lines, if produced indefinitely, meet on that side on which are the angles less than the two right angles.
Side 209 - THE straight line drawn at right angles to the diameter of a circle, from the extremity of it, falls without the circle...
Side 284 - The bases of a cylinder are the circles described by the two revolving opposite sides of the parallelogram.
Side 286 - If two triangles have two angles of the one equal to two angles of the other, each to each, and one side equal to one side, viz. either the sides adjacent to the equal...
Side 179 - Therefore all the angles of the figure, together with four right angles, are equal to twice as many right angles as the figure has sides.