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Haswell's engineers' and mechanics' pocket-book .. (1844)
Haswell, Chas. H. (Charles Haynes), 1809-1907 · New York, Harper & brothers · leaf 132
-Jb —— = tan. angle A.base -^ = sec. angle A.base P—^* = sin. angle A.hyp. baseperp.hyp.perp.basehyp. = tan. angle C.= sec. angle C= sin. angle C. 124 PLANE TRIGONOMETRY. OBLIQUE-ANGLED TRIANGLES.Engineering · Mechanical engineering
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
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