Calculus II Unit circle

Question 1

0 radians

Answer 1

1,0

Question 2

pi/6 radians

Answer 2

root(3)/2, 1/2

Question 3

pi/4 radians

Answer 3

root(2)/2, root(2)/2

Question 4

pi/3 radians

Answer 4

1/2, root(3)/2

Question 5

pi/2 radians

Answer 5

0,1

Question 6

second quadrant

Answer 6

same as first but x values are negative

Question 7

3rd quadrant

Answer 7

same as first but x and y values are negative

Question 8

4th quadrant

Answer 8

same as first but y values are negative