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lara31 [8.8K]
3 years ago
10

Write the following expression as a function of a positive acute angle. cos 215

Mathematics
1 answer:
Lana71 [14]3 years ago
7 0

Answer:

- cos 35°

Step-by-step explanation:

215° is in the third quadrant where cos is negative

cos 215° = - cos( 215 - 180)° = - cos 35°


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