QUESTION IMAGE
Question
question 2
calculate the exact value of \cos(60^{\circ}) without using a calculator.
0.25
i dont know
0.85
0.75
0.15
0.5
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<reasoning>
Identify the trigonometric ratio for a special angle
\[
\theta = 60^\circ
\]
Evaluate the cosine of the special angle
\[
\cos(60^\circ) = \frac{1}{2} = 0.5
\]
</reasoning>
<answer>
<mcq-option>0.25</mcq-option>
<mcq-option>I don't know</mcq-option>
<mcq-option>0.85</mcq-option>
<mcq-option>0.75</mcq-option>
<mcq-option>0.15</mcq-option>
<mcq-correct>0.5</mcq-correct>
</answer>
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<reasoning>
Identify the trigonometric ratio for a special angle
\[
\theta = 60^\circ
\]
Evaluate the cosine of the special angle
\[
\cos(60^\circ) = \frac{1}{2} = 0.5
\]
</reasoning>
<answer>
<mcq-option>0.25</mcq-option>
<mcq-option>I don't know</mcq-option>
<mcq-option>0.85</mcq-option>
<mcq-option>0.75</mcq-option>
<mcq-option>0.15</mcq-option>
<mcq-correct>0.5</mcq-correct>
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