Trigonometric Functions of Real Numbers

What is the ratio for Sine?

• Hypotenuse/Opposite

• Opposite/Hypotenuse

• Opposite/Adjacent

• Adjacent/Opposite

What quadrant does 21π/4 lie in?

• Quadrant 1
• Quadrant 2
• Quadrant 3
• Quadrant 4

7π/6=?

• 300°
• 30°
• 120°
• 210°

What radian measure corresponds to the point 

• π/4
• 3π/2
• 5π/4
• 7π/3

• 7π/6
• 5π/6
• 5π/6
• 11π/6

What is the terminal point for t = -5π ?

• (0, 1)

• (1, 0)

• (-1, 0)

• (0, -1)

What quadrant does -11π/3 lie in?

• Quadrant 1

• Quadrant 2

• Quadrant 3

• Quadrant 4

What is the terminal point for t = 13π/4 ?

• (−√2∕2, √2∕2)

• (−√2∕2, −√2∕2)

• (−√3∕2, −√2∕2)

• (√2∕2, −√2∕2)

cosθ is positive in

• the 1st and 2nd quadrants
• the 1st and 3rd quadrants
• the 1st and 4th quadrants
• the 2nd and 3rd quadrants