Unit Circle (version A)

A) 1
B) r
C) √3/2
D) π
E) √2/2

A) x
B) r
C) 1
D) theta
E) y

A) π
B) 1
C) 360
D) 2π
E) 180

A) 1
B) x
C) theta
D) y
E) r

5. The magnitudes of the maxima and minima of the unit circle's sine and cosine are the same.

A) true
B) Can't be determined
C) Neither
D) false

A) 0 to 360
B) -infinity to +infinity
C) 0 to 2π
D) -1 to 1

A) 90 and 270 degrees
B) neither 0 nor 180 degrees
C) 180 degrees
D) Both 0 and 180 degrees
E) 0 degrees

A) 270 degrees
B) 180 degrees
C) 0 degrees
D) 90 degrees

9. For the unit circle, if I translate the sine curve XXX radians, it will be in the same position as the cosine curve.

A) -π/2
B) π/2
C) π
D) 2π
E) -π

A) √2/2
B) 0
C) 1/2
D) -√2/2
E) 1

A) -√2/2
B) √3/2
C) √2/2
D) 1/2
E) 45

A) -30 degrees
B) 30 degrees
C) -390 degrees
D) 330 degrees

A) √3/2
B) 0
C) 1
D) 1/2
E) 180 degrees

A) 3π/2 radians
B) 3π radians
C) 1/2 radians
D) 2π radians
E) -π radians

A) 135 degrees
B) 315 degrees
C) 45 degrees
D) 3π/2 radians
E) 225 degrees

A) III
B) II
C) I
D) IV
E) never

A) 3π
B) 2π
C) π
D) π/2
E) 3π/2

18. One cycle of the sine and cosine curve from the unit circle have the same period.

A) Can't be determined
B) False
C) True
D) Neither

A) 2π radians
B) 360 degrees
C) π/2 radians
D) π radians

20. The cosine function is negative and the sine function is positive in quadrant

A) III
B) IV
C) I
D) II

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