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Georgia [21]
3 years ago
12

Use a sum identity to find the exact value of cos 285.

Mathematics
1 answer:
Morgarella [4.7K]3 years ago
8 0
The exact value of cos 285 is:
Fraction: (square root of 6 - square root of 2) over 4
Decimal: 0.25881904...
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3 years ago
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