The Unit Circle and Trigonometry Flashcards
What quadrant can you locate the angle 225 degrees?
Quadrant 3
What quadrant can you locate the angle 315 degrees?
Quadrant 4
What is the radian equivalent of 135 degrees?
3pie/4
What is the Big 4 Angles and their radian equivalents?
• 0 degrees = 2pie
• 90 degrees = pie/2
• 180 degrees = pie
• 270 degrees =3pie/2
What are the 2nd Sequence of angles when completing the unit circle?
• 45 degrees
• 135 degrees
• 225 degrees
• 315 degrees
What is the 3rd Sequence of Angles when completing the unit circle?
•30 degrees
•60 degrees
•120 degrees
•150 degrees
• 210 degrees
• 240 degrees
• 300 degrees
•330 degrees
After adding “pie” to every angle except the big 4 what is the number sequence needed for Quadrant 2, 3, and 4?
Q2»_space; 2,3,5
Q3»_space; 7,5,4
Q4»_space; 5,7,11
What are the three sequence of numbers needed for the denominator of every radian except the big 4?
/3,/4,/6
Which quadrant is being stated?
Cosine is positive
Quadrant 4
Which quadrant is being stated?
Sine is positive
Quadrant 2
Which quadrant is being stated?
Tangent is positive
Quadrant 3
Which quadrant is being stated?
All sine, cosine, and tangent are positive
Quadrant 1
Is cosine 225 degrees positive?
No, it is negative
Is cosine 300 degrees positive?
Yes, it is Positive
Is cosine 33 degrees negative?
No it is positive