l2i { 6=:64%44',37»,38"' log. coa

log. lang. 1 6 9.8090423

COS. (ôo,40',3",51"0 cot. 880

tang. 1B =

COS. (86o,40',3",51'")

log. COS. 6«,40',3",51'" 9.9970525 ( JBs:30%49' 0%58"' log. col. 88» 8.5430838

18.5i01363 ( Bz=61«38M",56'" log. COS. (86«,40',3",51"') 8.7645111

log.tang. iB 9.7756252

de sorte qae l'autre forme qai satisfait à la question est

a = 75* 6z=64^,44',37*,38'" ezz 98«,20',7*',42»"