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20 questions
What is the value of sine at 210°?
1/2
-1/2
√3 / 2
-√3 / 2
What is the value of cosine at 135°?
0
1/2
√2 /2
-√2 /2
Identify the Positive angle in both radians and degrees that represent point H.
150°, 65π
135°, 43π
180°, π
210°, 67π
Identify the Positive angle in both radians and degrees that represent point D.
60°, 3π
45°, 4π
−60°, −3π
90°, 2π
Identify the Positive angle in both radians and degrees that represent point L.
240°, 34π
225°, 45π
−60°, −3π
270°, 23π
Identify the Positive angle in both radians and degrees that represent point I.
180°, π
210°, 67π
150°, 65π
360°, 2π
Find the exact value of the trig ratio.
cos30°
23
21
22
−21
Find the exact value of the trig ratio.
sin180°
0
1
21
−1
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