Hello! i hope this since the cosine is the ratio of the adjacent side to the hypotenuse, you can see that cos 60Β° = Β½. answer. according to the property of cofunctions (topic 3), sin 30Β° is equal to cos 60Β°. sin 30Β° = Β½.
Another question on Mathematics
Mathematics, 21.06.2019 18:00
Is a positive integer raised to a negative power always positive
Nina has prepared the following two-column proof below. she is given that β oln β β lno and she is trying to prove that ol β on. triangle oln, where angle oln is congruent to angle lno nina made two errors in the proof. identify and correct the errors.