Maiste

tan 7π/4

• -1
• 1
• √2/2
• undefined

sin 7π/6

• 1/2
• -1/2
• √3/2
• -√3/2

What is the exact coordinates of  3π/4 on the unit circle?

• (−√2∕2, √2∕2)
• (−√2∕2, −√2∕2)
• (−√3∕2, −√2∕2)
• (√2∕2, −√2∕2)

tanθ is positive in

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

What is the radius of a unit circle?

• 1
• 2
• 1/2
• 0

What is 7π/4 radians in degrees?

• 300
• 135
• 315
• 45

Based on the unit circle, what is the value of tan?

• cos(x)

• sin(x)

• sin(x)/cos(x)

• cos(x)/sin(x)

What quadrant is -2π/3 in?

• I

• II

• III

• IV

sin(11π/6)

• -1/2
• 1/2
• √3/2
• -√3/2

Based on the unit circle, what is the value of sin?

• y

• x

• x/y

• y/x