Cos 30° =…….. dan sec 30°=…. By Admin ReiPosted on December 5, 2022 Cos 30° =…….. dan sec 30°=…. Jawaban: Cos 30 = ½√3 sec 30 = ¹/Cos 30 = ¹/½√3 = 1/1 ×2/√3 = 2/√3 = 2√3/3