New plane and spherical trigonometry, surveying, and navigation (1903)
Wentworth, G. A. (George Albert), 1835-1906 · Boston : Ginn & Company · leaf 291
- b) esc (s — c). log esc s= 0.16409 log sin (s- a) = 9.00210 log sin (s - b) = 8.56391 log esc (s - c)= 0.23715 logtanHC = 17.96725 logtan-£-C= 8.98363. iC= 5° 302.0 = 11° 04.15)11° 0 4 44 min. y4- sec. Therefore, the time at Berlin is12 hr. 44 min. p.m. 10. Given tfie altitude of the pole45°, and… … ZP = 90° - I = 45°,ZM = z = 90°,Z = a = 45°. Required p. By [45], cosp = cos (90° — I) cos z + sin (90° — I) sin z sin a = cos 45° cos 90° + sin 45° sin 90° sin 45°= sin2 45° = i- ..-. p = 60°. 11. Given the latitude I of theobserver, and the declination d of thesun; find the local time…
Trigonometry · Surveying · Navigation
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