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20 questions
sin π/4
√2∕2
1/2
√3/2
0
sec 3π/2
0
undefined
1
-1
cos 5π/6
-1/2
1/2
√3/2
-√3/2
tan 7π/4
-1
1
√2/2
undefined
cos 4π/3
-√3/2
√3/2
1/2
-1/2
cot 3π/4
-√2/2
-1
1
√2/2
sin 7π/6
1/2
-1/2
√3/2
-√3/2
cot π/2
undefined
0
1
1/2
sin 2π/3
1/2
-1/2
√3/2
-√3/2
tan (-π)
undefined
0
1
-1
csc 0
0
1
-1
undefined
cos 225⁰
-√3/2
√3/2
√2/2
-√2/2
What is the radius of the unit circle?
0
1/2
1
2
tan 4π/3
√3
-√3
-√3/3
√3/3
sin 5π/6
√3/2
-√3/2
1/2
-1/2
What is the exact coordinates of 3π/4 on the unit circle?
(−√2∕2, √2∕2)
(−√2∕2, −√2∕2)
(−√3∕2, −√2∕2)
(√2∕2, −√2∕2)
Evaluate: csc(3π/4)
√2/2
-√2/2
√2
-√2
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