Unit Circle Radians
180º
What is π
π/6
What is 30º
What trigonometric functions are positive in Quadrant I ?
What is all
What is the sin of 30º
What is 1/2
What is the reference angle of 3pi/4
pi/4
45º
What is π/4
π/3
What is 60º
Quadrant where cos > 0 and sin < 0
What is Quadrant IV?
What is the cos of 45º
What is sqrt(2)/2
What is the reference angle of 240 degrees?
60 degrees
150º
What is 5π/6
5π/4
What is 225º
What trigonometric functions are positive in Quadrant III ?
What is tangent and cotangent
What is the tan of 60º
What is sqrt(3)
What is the reference angle of -2pi/3?
pi/3
300º
What is 5π/3
4π/3
What is 240º
Quadrant where tan < 0 and sec < 0
What is Quadrant II?
What is the sin of 5π/6
What is 1/2
What is the reference angle of -7pi/6
pi/6
405º
What is 9π/4
11π/6
What is 330º
What trigonometric functions are negative in Quadrant II ?
What are cosine, secant, tangent, cotangent
What are the values of all 6 trigonometric functions at the angle π
What is sin = 0; cos = -1, tan = 0, csc = undefined, sec = -1, cot = undefined
What is the reference angle of 570 degrees?
30 degrees