# Plane and Sperical Trigonometry (with Five-place Tables): A Text-book for Technical Schools and Colleges

J. Wiley, 1913 - 520 páginas
0 Opiniones
Las opiniones no están verificadas, pero Google revisa que no haya contenido falso y lo quita si lo identifica

### Comentarios de la gente -Escribir un comentario

No encontramos ningún comentario en los lugares habituales.

### Pasajes populares

Página 59 - The logarithm of any power of a number is equal to the logarithm of the number multiplied by the exponent of the power.
Página 135 - In the same way it may be proved that a : b : : sin. A : sin. B, and these two proportions may be written a : 6 : c : : sin. A : sin. B : sin. C. THEOREM III. t8. In any plane triangle, the sum of any two sides is to their difference as the tangent of half the sum of the opposite angles is to the tangent of half their difference. By Theorem II. we have a : b : : sin. A : sin. B.
Página 272 - ... an indispensable instrument in the treatment of nearly every recondite question in modern physics. To mention only sonorous vibrations, the propagation of electric signals along a telegraph wire, and the conduction of heat by the earth's crust, as subjects in their generality intractable without it, is to give but a feeble idea of its importance.
Página 223 - B) = cos A cos B - sin A sin B. cos (A - B) = cos A cos B + sin A sin B.
Página 58 - The logarithm of the quotient of two numbers is equal to the logarithm of the dividend minus the logarithm of the divisor.
Página 39 - Spherical Triangle the cosine of any side is equal to the product of the cosines of the other two sides, plus the product of the sines of those sides into the cosine of their included angle ; that is, (1) cos a = cos b...
Página 130 - In any triangle, the sides are proportional to the sines of the opposite angles. That is, sin A = sin B...
Página 53 - A cos 6 = cos a cos c + sin a sin c cos B cos c = cos a cos 6 + sin a sin 6 cos C Law of Cosines for Angles cos A = — cos B...
Página 63 - FRACTION is a negative number, and is one more than the number of ciphers between the decimal point and the first significant Jigure.
Página 22 - I. The sine of the middle part is equal to the product of the tangents of the adjacent parts.