The Unit Circle

1.    The value of  sin 2π is  Choose One 0 +1 -1 0.7071 undefined 45 degrees 0.5 -0.5 π 2 π 2 0.8660 or [√3/2] -0.8660 or -[√3/2] .

2.    The value of   sin π/2  is  Choose One 0 +1 -1 0.7071 undefined 45 degrees 0.5 -0.5 π 2 π 2 0.8660 or [√3/2] -0.8660 or -[√3/2] .

3.    The approximate value of sin π/4  and cos π/4 is  Choose One 0 +1 -1 0.7071 undefined 45 degrees 0.5 -0.5 π 2 π 2 0.8660 or [√3/2] -0.8660 or -[√3/2] .

4.    The value of cos π/2  is  Choose One 0 +1 -1 0.7071 undefined 45 degrees 0.5 -0.5 π 2 π 2 0.8660 or [√3/2] -0.8660 or -[√3/2] .

5.    The value of tan π/4  is  Choose One 0 +1 -1 0.7071 undefined 45 degrees 0.5 -0.5 π 2 π 2 0.8660 or [√3/2] -0.8660 or -[√3/2] .

6.    The value of  sin (3π)/2  is  Choose One 0 +1 -1 0.7071 undefined 45 degrees 0.5 -0.5 π 2 π 2 0.8660 or [√3/2] -0.8660 or -[√3/2] .

7.    The value of  tan  π/2  is  Choose One 0 +1 -1 0.7071 undefined 45 degrees 0.5 -0.5 π 2 π 2 0.8660 or [√3/2] -0.8660 or -[√3/2]

8.    The value of  cot  π/2  is  Choose One 0 +1 -1 0.7071 undefined 45 degrees 0.5 -0.5 π 2π 2 0.8660 or [√3/2] -0.8660 or -[√3/2] .

9.    The value of tan  (9π)/4  is  Choose One 0 +1 -1 0.7071 undefined 45 degrees 0.5 -0.5 π 2 π 2 0.8660 or [√3/2] -0.8660 or -[√3/2] .

10.  The value of  cos (5π)/6  is  Choose One 0 +1 -1 0.7071 undefined 45 degrees 0.5 -0.5 π 2 π 2 0.8660 or [√3/2] -0.8660 or -[√3/2] .

11.  The value of  csc (-π)/2  is  Choose One 0 +1 -1 0.7071 undefined 45 degrees 0.5 -0.5 π 2 π 2 0.8660 or [√3/2] -0.8660 or -[√3/2] .

12.  The value of  sin  (11π)/6 is  Choose One 0 +1 -1 0.7071 undefined 45 degrees 0.5 -0.5 π 2 π 2 0.8660 or [√3/2] -0.8660 or -[√3/2] .