Circle Unit Sine Cosine Tangent

tan 7π/4

• -1

• 1

• √2/2

• undefined

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

• (-1,1)

• (1,1)

• (-1,-1)

• (0,1)

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

• cosine

• tan

• sine

• tangent

What is the radius of the unit circle?

• 2

• 3

• 2/3

• 1

what is tan 45 degrees?

• 1

• 6

• 3/2

• 2

What is Tan 90 degrees?

• constant

• 1

• undefined

• 4

Find the sine, cosine, and tangent for the following point on the unit circle. (Hint: What is the relationship between coordinates on the unit circle and sine, cosine, and tangent?) \left(\frac{12}{13},\ \frac{5}{13}\right)