Sine Cosine Degrees Unit Circle

What is the value of sine at 210?

• 1/2

• -1/2

• √3 / 2

• -√3 / 2

What is the value of cosine at 270

• 0

• 1

• -1

What is the value of sine at 150

• 0

• 1/2

• 1

• √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)

Which of the following points is in the unit circle?

• (1 / 2 , 1 / 2)

• (-√2 / 2 , -√2 / 2)

• (√2 / 3 , -√2 / 3)

• (3 / 2 , 2 / 3)

Find the point on the Unit Circle associated with the angle 5π/3

• (1 / 2 , 1 / 2)

• (-√3 / 2 , 1/2)

• (1 / 2 , -√3 / 2)

• (-√3 / 2 , -1/2)

What is sin 30 degrees?

• 1/2

• x/r

• 3/2

• 2/2

On a point in the unit circle (x,y) the x value is the

• cosine

• tan

• sine

• tangent

Find the point on the Unit Circle associated with the angle 5π/3

• (1 / 2 , 1 / 2)

• (-√3 / 2 , 1/2)

• (1 / 2 , -√3 / 2)

• (-√3 / 2 , -1/2)

What point corresponds to an angle of 5π/2 radians on the unit circle?

• (-1,1)

• (1,1)

• (-1,-1)

• (0,1)