Answer:




or


Step-by-step explanation:



So, when cos(x) is equal to
?
For

We are talking about x = 60º and x = 300º, Quadrant I and IV, respectively. In radians:


or

For

We are talking about x = 120º and x = 240º, Quadrant II and III, respectively. In radians:


or

Answer:
prime numbers
Step-by-step explanation:
not composite since,example, 2 is prime
not even since,example, 19 is odd
not odd since,example, 2 is even
Answer:
15 ,90 30 45.90,23,23,45,
0
,12,3,
Step-by-step explanation: