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Pocket-book of mechanics and engineering (1864)
Nystrom, John W. (John William), 1824-1885 · Philadelphia, J.B. Lippincott · leaf 126
129. 5?/ Ordinates.h= iC(cosec.v — cot.i?). y„lC(2?5£_COt.l,), \sm.t / 2a? sin.v sm.^; … 130. Zty Sub-chords,Ctdm.v 71 == tan.i> rtan.7?b = nsec.7,o = sec.u(C — //), 7i = 77 tan. 7, w? = 2i?17=27Mechanical engineering · Engineering
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
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