Convert 45o to radians
pi/4
In which quadrant is the terminal side of 150o?
Quadrant II
What is the exact value of cos(135o)?
-sqrt(2) / 2
Convert 3pi/4 to degrees
135o
In which quadrant is the terminal side of 7pi/4?
Quadrant IV
What is the exact value of sin(4pi/3)?
-sqrt(3)/2
Convert 3pi/10 to degrees
54o
In which quadrant is the terminal side of 165o?
Quadrant II
What is the exact value of tan(pi/4)?
1
Convert 310o to radians.
31pi/18
In which two quadrants will cosine be positive?
Quadrants I and IV
Identify the two values of θ such that cos(θ) = 1/2. Answer in degrees.
60o and 300o
Convert -70o to radians.
-7pi/18
In which two quadrants will tangent be negative?
Quadrants II and IV
Identify the two values of θ such that sin(θ) = -1/2. Answer in radians.
7pi/6 and 11pi/6