Calendar: 1888-1889 Page 746
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738 ENGINEERING DEPARTMENT tan tan tan2yi iv sin sin sin Β sin sin sin Write down the tangents of 30 45 60 and deduce of the tangents of 75 and 10 In any triangle prove that cosec ii iii 11 Given cosec Β cos -f cos the area be 138 place of decimals 12 Solve the equations AH 45 sin cos cc 1-cos sin -1 cosec ל Β Β 60 ל find and ע sin 2a 7r Crtgouomctii autt iffevcuttal Calculus In any triangle prove that cos b2 26c ii cos be iii the area Ex 231 250 289 If £ be the circumcentre the incentre and the mass-centre of triangle ABC express SA and GA in terms of the sides and angles of the triangle Shew that these expressions are all equal for an equilateral triangle Solve the triangle 36 KV5 Solve the triangle 351 765 276 375 78 26 having given log 62814 7980565 log 75390 8773137 log cot 39 1310 Ό882755 10gtan8 229 Ί675322 If be two objects visible from each of two observing stations Β the distance Aj being known state
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