MissRomania MissRomania 02-04-2016 Matematică a fost răspuns Calculati a)sin30gradecos60grade+sin60grade+cos 30grade b)sin30grade cos30grade cos60grade c)sin45°cos30°-sin 30°cos45° d)sin la a douA30°+cos la a doua 30° e)tg60°•ctg60°