Ang Cosine ay isang trigonometriko function ng isang anggulo. cos (θ) = katabi / hypotenuse.
y = cosine (x) graph
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| x
(deg) td>
| x
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| y = cosine (x) td>
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| 180 ̊ td>
| π td>
| - 1 td>
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| 150 ̊ td>
| 5π / 6 td>
| - 0.866025 td>
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| 135 ̊ td>
| 3π / 4 td>
| - 0.707107 td>
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| 120 ̊ td>
| 2π / 3 td>
| - 0.5 td>
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| 90 ̊ td>
| π / 2 td>
| 0 td>
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| 60 ̊ td>
| π / 3 td>
| 0.5 td>
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| 45 ̊ td>
| π / 4 td>
| 0.707107 td>
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| 30 ̊ td>
| π / 6 td>
| 0.866025 td>
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| 0 ̊ td>
| 0 td>
| 1 td>
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