jika cos alfa=12/13,dengan alfa lancip.tentukanlah cscalfa,tanalfa,secalfa,sinalfa,dan atalfa

cos = 12/13,, samping=12 ,,miring=13,,depan=5

kosek = 1/sin = 1/5/13 = 13/5
tan = 5/12
sek = 1/cos = 1/12/13 = 13/12
sin = 5/13
cotg = 12/5