New plane and spherical trigonometry, surveying, and navigation (1903)
Wentworth, G. A. (George Albert), 1835-1906 · Boston : Ginn & Company · leaf 127
27 log sin B = 9.91985 colog sin A — 0.15051 log b = 1.32563 6 = 21.166. c _ sin C a sin A \oga= 1.25527 log sin C = 9.99157 colog sin A = 0.15051 logc = 1.39735 c = 24.966. Therefore, the required distancesare 21.166 miles and 24.966 miles. 2. Two objects A and B were ob-served from a ship to be… … / 45° 105° \45° 75° \ \ I \ i V 1 i 1 \60o/ Let A and B represent the objects,S and S the first and second posi-tions of the ship. SA _ am ASSSS ~ sin SASlog SS = 0.69897log Bin ASS= 9.93753colog sin SAS = 0,01506logSA = 0.65156AB _ sin BSAWA ~ sin SBAlogSA = 0.65156log sin BSA = 9.84949colog sin…
Trigonometry · Surveying · Navigation
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