Vocabulary consisting only from characters you are able to read
切線
せっせん
tangent (in trigonometry)mix
立ち上がる
たちあがる
(1)to stand up, to get up, (2)to rise, (3)to recover, (4)to take action, to start, (5)to make the initial charge (in sumo), (6)(comp) to start up, to boot up godan, verb, vintrans