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T <br />LA,f <br />0 , L IM <br />TAnLm II <br />TRIGONOMETRIC FORMULAE <br />LA = LMOP LB = LPON = LOPL <br />C = OP = OM ON = 1 <br />sin A—: _ =a= Cos B=LP <br />cos A = b . c b = b = -sin B = OL <br />C 1 <br />tan A & = MQ _ MQ = MQ ='cot B <br />b OM 1 <br />cot A = ON = NT = <br />NT=tan g <br />sec .A =. OM = OQ <br />�Q o OQ = esc B <br />OT OT <br />cscA= ON=OT=weB <br />vers A = OP = LM = covers B <br />covers A = OP—LPOP= OP — LP = vera B <br />exwc A = PQ = coexsec B <br />coexsee A = PT = exsee B <br />ain A =, 1— {;ns�A eos A = I +Coo A <br />sin 2A = 2 sin A cos A cos 2A = c082 A —sin$ A <br />Law of Sines sin A _ sin B _ sin C <br />a b c <br />Law of Cosines c2 = a2+b2-2 ab cos C <br />Law of Tangents &+b= tan {A $) <br />a— b tan j2 (A—B) <br />ar: <br />